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Definitions

• the present invention relates to guanidine compounds and the use of guanidine compounds as binding partners for 5-HT5 receptors for the treatment of diseases which are modulated by 5-HT5 receptor activity, in particular for the treatment of neurodegenerative and neuropsychiatric disorders and the associated signs and symptoms and malfunctions.
• At least seven different receptor classes mediate the physiological activities that are ascribed to the involvement of the neurotransmitter serotonin (5-hydroxytryptamine, 5-HT for short). They are classified according to an internationally recognized classification with 5-HT1, 5-HT2, 5-HT3, 5-HT4, 5-HT5. -5-HT6 and 5-HT7. Most of these classes also include other distinguishable receptor subtypes.
• the 5-HT1 class includes receptors, which in turn can be divided into at least five subclasses, and are referred to as 5-HT1A, 5-HT1 B, 5- HT1 C 5-HT1 D and 5-HT1 E (Boess, Martin ; Neuropharmacology 33: 275-317 (1994).
• 5-HT5 class was first described by Plassat et al., The EMBO Journal Vol. 1 1 No. 13, pp. 4779-4786 (1992). A distinction is made between 5-HT5A and 5-HT5B receptors (Erlander et al., Proc. Natl. Acad. Sci. USA 90: 3452-3456 (1993). There are only slight sequence homologies between 5-HT5 and other 5-HT Receptors, and the pharmacological profile of these receptors is significantly different. 5-HT5 receptors could be localized in the olfactory bulb, in the hippocampus, in the cortex, in the cerebral ventricles, in the corpus callosum and in the cerebellum using molecular biological techniques.
• 5-HT5 receptors are expressed by neurons in different brain regions (Oliver et al. Brain Res 2000, 867, 131-142; Pasqualetti et al. Mol Brain Res 1998, 56, 1-8))
• These 5-HT5 receptors can modulate important functions of the brain directly or indirectly, but they can also be involved in mechanisms be involved in neuropathological, neurodegenerative and neuropsychiatric diseases.
• 5HT5 receptors have also been localized in astrocytes (Carson et al., GLIA 17: 317-326 (1996).
• Astrocytes are located directly on the basement membrane of capillary brain capillaries and an abnormal astrocyte endothelium structure is associated with a loss of the blood brain barrier
• the exact meaning of the astrocytes is unclear, they appear to perform transport and connective functions.
• Reactive astrocytes have been observed in association with reactive gliosis in a number of pathological brain changes and neuropsychiatric disorders. Due to brain injuries, these astrocytes change their morphology. The protein expression pattern changes and growth factors are produced.
• 5-HT5-receptor-mediated responses were for this reason, it is assumed that the 5-HT5-receptor is involved in brain recovery processes after disorders, but on the other hand it is also not t exclude that they contribute to the occurrence of damage or even to an increase in damage.
• CNS diseases now affect large parts of the population. Due to the increasing number of older people in particular, the number of patients is constantly increasing. Neuropathological conditions such as cerebral ischemia, stroke, epilepsy and seizures in general, chronic schizophrenia, other psychotic diseases, depression, anxiety, bipolar disorders, dementia, especially Alzheimer's dementia, demyelinating diseases, especially multiple sclerosis, and brain tumors lead to brain damage and to the associated neural deficits. Therapeutic treatments for the described neurodegenerative and neuropsychiatric disorders have hitherto focused on various membrane receptors with the aim of compensating for deficits in neurotransmission processes.
• Neuroprotective effects with various serotonergic compounds in animal models for neuropathological conditions such as ischemia, stroke and excitotoxicity could indeed be achieved; in some cases, beneficial effects on mood disorders such as depression or anxiety could also be observed.
• Examples include 5-HT1A agonists such as buspirone, or the compound 8 ⁇ hydroxy-2- (di-n-propy) amino) tetra) / n (8-OH-), which is characterized as a selective 5-HT1A receptor ligand.
• 5-HT1A agonists such as buspirone, or the compound 8 ⁇ hydroxy-2- (di-n-propy) amino) tetra) / n (8-OH-), which is characterized as a selective 5-HT1A receptor ligand.
• DPAT selective 5-HT1A receptor ligand
• Migraines are most often manifested by a recurring headache, of which an estimated 8 million people, i.e. 3-5% of all children, 7% of all men and 14% of all women are affected. Although a genetic predisposition is propagated, the causes seem to be complex (Diener HC et al., Drug therapy 15: 387-394 (1997). Two hypotheses dominate.
• the long-known vascular theory suggests a dilatation process as the cause internal and external cerebral vasculature
• the neurogenic theory is based on the release of vasoactive neurotransmitters, primarily neuropeptides such as substance P and neurokinin, from axons of the vasculature as a result of stimulation of certain brain tissue innervating ganglia, which is said to lead to inflammatory reactions and thus to pain.
• migraine-specific active substances such as Sanmigran R , Nocerton R , Desemil R and Vidora R , but also substances used for other indications, such as beta-blockers, antiemetic substances such as Sibelium R , antidepressants such as Laroxyl R , or antiepileptic substances such as Depakin R are administered .
• analgesics such as Aspirin R , Paracetamol R or Optalidon R , non-steroidal anti-inflammatory drugs such as Cebutid R , Voltaren R , B antivirus R , Ponstyl R , Profenid R , Apranx R and Naprosin R against pain and inflammation, ergot alkaloids, such as ergotamine, dihydroer
• Non-opioid analgesics often have side effects.
• the complex mechanism of action of the ergot alkaloids leads to side effects such as hypertension and gangrene due to the strong peripheral vasoconstriction.
• To the triptan Family-owned connections are also not completely satisfactory (Pfaffenrath V. Münch. Med. Wschr. 625-626 (1998).
• 5-HT5 receptor ligands in general for the treatment of migraines and other cerebrovascular diseases is described in WO 00/041472, for the treatment of neurodegenerative and neuropsychiatric diseases in WO 00/041696.
• Guanidine compounds have not previously been used as 5-HT5 ligands.
• Substituted guanidines are generally known as H2-antagonists, as inhibitors of H + K + -ATPase, gastric acid secretion inhibitors, and in these properties as agents for the treatment of PUD syndrome (Peptic Ulcer Disease).
• Various substituted thiazol-guanidines are generally described in the literature, as compounds with antiviral, bactericidal, antimicrobial and / or anti-driven inflammat effect ntagonisten as protease inhibitors or vitronectin ⁇ '.
• WO-9911637 describes generally substituted ⁇ / - ⁇ 4- [anilinoalkyl) phenyl] -1, 3-thiazol-2-yl ⁇ -N'-benzylguanidines and their use as protease inhibitors.
• WO-9850373 describes N-substituted ⁇ / - [4- (phenoxyphenyl) -1, 3-thiazol-2-yl] guanidines and their use as bactericides.
• WO-9605187 and EP-545376 describe the preparation of substituted 4- (3-aminomethylphenyl) -2-thiazolylguanidines and their use as H2-receptor antagonists.
• JP-59225172 generally describes N-alkyl-substituted 4-phenylthiazolguanidines as H1 and H2 receptor antagonists and their use as gastric acid secretion inhibitors.
• NL-7700083, US-4089965, DE-2700951, BE-850148 describe N-aryl-substituted 4-phenyl-thiazolguanidines with antiviral properties, especially as antirhinovirus agents.
• EP-3640 describes generally substituted A / - [4- (3-aminophenyl) -1, 3-thiazol-2-yl] guanidines and their antisecretory properties.
• JP-0817614 describes the preparation of 2- [(diaminomethylene) amino] -4-pyrimidinylthiazolguanidines with H2-antagonistic, antiulcer and antibacterial properties.
• WO-9518126, JP-09040671, WO-9403450, WO-9303028, EP-355612, US-4814341 describe N-substituted 4-furylthiazolguanidines with antibacterial properties (especially Heliobäcter pylori) and their use for the treatment of gastritis and general PUD syndrome (ulcer, Zollinger-Ellison syndrome, oesophagititis, gastrointestinal bleeding).
• WO-9429304 and JP-08245621 describe corresponding 4-Th (enylth / azolguanidines with a similar purpose.
• EP-417751 generally describe the preparation of N-substituted 4-hetaryl-substituted thiazole guanidines, especially corresponding pyridyi and thiazolyi derivatives , H2-antagonistic properties and their use as antiulcer and antimicrobial agents
• EP-259085 also describes the preparation of 4-hetaryl-substituted thiazole guanidines, especially corresponding pyrrolyl and indolyl derivatives, for the treatment of PUD syndrome JP-59225186 and JP -59036674 describe 4- hetaryl-substituted thiazole guanidines, especially 2-furyl and 2-pyridyl derivatives, and their antisecretory properties.
• JP-07188197 describes 4-phenyloxazolguanidines as H2-receptor antagonists with additional antibacterial properties for the treatment of gastrointestinal diseases.
• N-aryl-N'-2- (thiazolyl-, napthothiazolyl-, benzothiazolyl) guanidines are used as substances with antimalarial activity and / or analgesic Properties described.
• thiazolyl-, napthothiazolyl-, benzothiazolyl guanidines are used as substances with antimalarial activity and / or analgesic Properties described.
• Bioorg.Med.Chem.Lett. 2000 (10), 265-268 describes ⁇ / - [2- (2-methoxyphenyl) ethyl] - / V'-1,3 hiazol-2-ylguanidine in the context of bioisosteric modifications of PETT-HIV-1 RT inhibitors , the connection showed no detectable biological activity.
• the object of the present invention is to provide compounds which enable the treatment of neuropathological, neuropsychiatric and neurodegenerative disorders with sufficient effectiveness and few side effects.
• substances of the general formula I or ) A act as ligands of the 5-HT5 receptor and therefore a treatment of the associated disease states described above and the associated symptoms and malfunctions is made possible.
• the present invention therefore relates to a guanidine compound of the general formula I.
• W a radical of the general formula W1 or W2
• W1 W2 in which A: N0 2 , NH 2 , OH, CN, CF 3 , OCF 3 , CHF 2 , OCHF 2 , COOH, 0-CH 2 -C00H, halogen, SH, or in each case optionally substituted CC 6 -alkyl, C 2 -C 6 -alkenyl, C 2 -C 6 -alkynyl, C 3 -C 7 -cycloalkyl, CC 4 -alkylene-C 3 -C 7 -cycloalkyl, CC 4 -alkylene- heterocycloalkyl, aryl, hetaryl, heterocycloalkyl, C ⁇ - C 4 alkylene hetaryl or CC 4 alkylene aryl, or OR A 1 , CO-R A 1 , SR A 1 , SO-R A 1 , CO-OR A 1 , NR A 4 -CO-0-R A 1 , O-CH 2
• C ⁇ -C 6 alkyl optionally substituted C ⁇ -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 - alkynyl, C 3 -C 7 cycloalkyl, -C 4 -alkylene-C 3 -C 7 cycloalkyl, CC 4 - Alkylene heterocycloalkyl, aryl, hetaryl, heterocycloalkyl, CC 4 alkylene aryl, C 2 -C 6 alkenylene aryl or C 1 -C 6 alkylene hetaryl;
• CC 6 -alkyl C 2 -C 6 -alkenyl, C 2 -C 6 -alkynyl, CC 4 -alkylene-C 3 -C 7 -cycloalkyl, CC 4 -alkylene-heterocycloalkyl , Aryl, hetaryl, heterocycloalkyl, CC 4 -alkylene-aryl, CC 4 -alkylene-hetaryl, CrC 6 -alkylene-OC C 6 -alkyl, CO-C C 6 -alkyl, CO-aryl, CO-hetaryl, CO- CC 4 -alkylene-aryl, CO-d-CValkylene-hetaryl, CO-OC C 6 -alkyl, CO-O-aryl, CO-OC C 4 -alkylene-aryl, CO-O-hetaryl, CO-OC C 4 -A
• R each optionally substituted C 1 -C 6 -alkyl, C 2 -C 6 -alkenyl, C 2 -C 6 -alkynyl, CC 4 -alkylene-C 3 -C 7 -cycloalkyl, CC 4 -alkylene-heterocycloalkyl, aryl, hetaryl, Heterocycloalkyl, CC 4 -alkylene-aryl, CC 4 -alkylene-hetaryl, CC 6 -alkylene-OC r C 6 -alkyl, CO-C C 6 -alkyl, CO-aryl, CO-hetaryl, CO-CC 4 -alkylene Aryl, CO-C 4 -alkylene-hetaryl, CO-OC-C 6 -alkyl, CO-O-aryl, CO-OC 1- C 4 -A) kylene-aryl, CO-O-hetaryl, CO-OC C 4 alkylene
• radical A is defined, or in each case independently of one another two of the radicals A, B or R w 1 together a 3 to 7-membered, optionally substituted, saturated or unsaturated carbocycle or an optionally substituted, saturated or unsaturated or aromatic Heterocycle, which can contain one, two or three further different or identical heteroatoms from the group O, N, S; where optionally two radicals substituted on this carbocycle or heterocycle together form a fused, saturated, unsaturated or can form an aromatic carbocycle or heterocycle, where the heterocycle can contain up to three different or identical heteroatoms O, N, S and where the cycle formed can be optionally substituted or a further, optionally substituted cycle can be fused to this cycle;
• Rz ⁇ Rz 2, Rz 3 Rz 4 each independently: hydrogen, halogen, OH, or optionally substituted C ⁇ -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 - alkynyl, CC 6 alkylene -C 3 -C 7 cycloalkyl, C 3 -C 7 cycloalkyl, aryl, C r C 4 - alkylene aryl, hetaryl or CC 4 alkylene hetaryl, or in each case independently of one another two radicals R 2 1 and R z 2 or R z 3 and R z 4 together form
• Rz 5, 5 * Rz are independently hydrogen or optionally substituted CrC 6 alkyl, -C 6 alkylene-OC- ⁇ -C 6 - alkyl, C 2 -C 6 alkenyl, C 3 -C 12 alkynyl , CO-C C 6 -alkyl, CO-OC C 6 -alkyl, SO 2 -CC 6 -alkyl, C 3 -C 7 -cycloalkyl, aryl, CC 4 -alkylene-aryl, CO-OC C 4 - alkylene- Aryl, CO-C 4 -alkylene-aryl, CO-aryl, SO 2 -aryl, hetaryl, CO-hetaryl or SOz-d-oralkylene-aryl;
• R z 6 , R z 7 independently of one another: hydrogen, OH or in each case optionally substituted CrC 6 alkyl, CrC 4 alkoxy, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, CC 6 alkylene-C 3 -C 7 cycloalkyl, C 3 -C 7 cycloalkyl, aryl, CC alkylene aryl, hetaryl or CC 4 alkylene hetaryl;
• R 1 , R 2 , R 3 independently of one another: hydrogen, OH, CN, or in each case optionally substituted CC 6 -alkyl, OC r C 6 -alkyl, CC G - alkylene-0-CC 6 -alkyl, C 3 -C 7 -Cycloalkyl, 0-C 3 -C 7 -cycloalkyl, aryl, hetaryl, CC 4 -alkylene-aryl, CC 4 -alkylene-hetaryl, O-aryl, OC C 4 -alkylene-aryl, O-hetaryl, 0-C r C 4 -alkylene-hetaryl, CO-C r C 6 -alkyl, CO-aryl, CO-hetaryl, CO-C C 4 -alkylene-aryl, CO-C C 4 -alkylene-hetaryl, CO-O-C ⁇ -C 6 alkyl, CO-O-aryl
• Q a doubly substituted 5-membered hetaryl residue selected from Q1 to Q7
• R Q 1 hydrogen, or in each case optionally substituted CC 4 -alkyl, CO-C C 4 -alkyl, S0 2 -CC 4 -alkyl, CO-0-CC 4 -alkyl, aryl, CC 4 -alkylene-aryl, CO -Aryl, CO-hetaryl, S0 2 -Aryl, S0 2 -hetaryl, CO-O-aryl, CO-C C 4 -alkylene-aryl, S0 2 -CC 4 - alkylene-aryl or CO-0-CC 4 - alkylene-aryl;
• R 4 , R 5 each independently represent a radical selected from groups 1.), 2.), 3.), 4.), 5.), 6.) or 7.):
• Alkyl C 2 -C 6 alkenyl, C 2 -C B alkynyl.
• R Q 5 each optionally substituted C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, CC 4 alkylene-C 3 -C 7 cycloalkyl, CC 4 alkylene heterocycloalkyl, heterocycloalkyl or hetaryl, or CC 6 - Alkyl which is optionally substituted with a substituent from the group consisting of halogen, N0 2 , NH 2 , OH, CN, CF 3 , CHF 2 , OCF 3) OCHF 2 , NH- (CC 5 -alkyl) and N ( CC 6 - alkyl) 2 ;
• R Q 6 each optionally substituted CC 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 7 cycloalkyl, C 1 -C 4 alkylene-C 3 -C 7 cycloalkyl , CrC ⁇ alkylene
• Q R 7 is hydrogen, OH, CN, or optionally substituted C ⁇ -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 7 cycloalkyl, CC 4 -alkylene-C 3 -C 7 cycloalkyl, CrC 4 alkylene heterocycloalkyl, aryl, hetaryl, heterocycloalkyl, Ci-CcrAlkylen-O-Ci-C ⁇ -alkyl, CO-C C 6 -alkyl, CC 4 -alkylene-aryl, C ⁇ -C 4 -alkylene-hetaryl, CO-aryl, CO-hetaryl, CO-C C 4 -alkylene-aryl, CO-C C 4 -alkylene-hetaryl, CO-0-CC 6 -alkyl, CO-O-aryl, CO -0-CC 4 -alkylene-aryl, CO-O
• R Q 8 is hydrogen or in each case optionally substituted CC 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 7 cycloalkyl, CC 4 alkylene-C 3 -C 7 cycloalkyl, CC alkylene heterocycloalkyl, aryl, hetaryl, heterocycloalkyl, Ci-C ⁇ -alkylene-O-Ci-C ⁇ -alkyl.
• R Q 7 and R Q 8 together with the nitrogen form a 3 to 7-membered, optionally substituted, saturated or aromatic heterocycle which can contain one, two or three further different or identical heteroatoms O, N, S; and optionally two radicals substituted on this heterocycle together can form a fused, saturated, unsaturated or aromatic carbocycle or heterocycle, where the heterocycle can contain up to three different or identical heteroatoms O, N, S, and the cycle formed is optionally substituted may be or another, optionally substituted cycle may be fused onto this cycle;
• both radicals R 4 and R 5 together form a 4 to 7-membered, optionally substituted, saturated or unsaturated or aromatic carbocycle or a 5- or 6-membered optionally substituted, saturated or unsaturated or aromatic heterocycle, up to three more may contain different or identical heteroatoms O, N, S, and may be substituted with up to two further radicals, it being possible for two radicals substituted on this carbo- or heterocycle to together form an fused, saturated, unsaturated or aromatic carbocycle or heterocycle , wherein the heterocycle can contain up to three different or identical heteroatoms O, N, S and wherein the cycle formed can optionally be substituted or an a further, optionally substituted cycle may be fused onto this cycle;
• a 4-7-membered mono- or bicyclic saturated or unsaturated heterocycle which can contain up to two different or identical heteroatoms from the group O, N or S, this cycle also being able to be substituted several times.
• the heterocycle contains an N atom, this can be substituted by a radical R Q 7 .
• the present invention relates to the following guanidine compounds of formula (I), wherein
• W a radical of the general formula W1 or W2
• A N0 2 , NH 2 , OH, CN, CF 3 , OCF 3 , CHF 2 , OCHF 2 , COOH, 0-CH 2 -COOH, halogen, SH, or each optionally substituted CC 6 -alkyl, C 2 ⁇ C 6 -alkenyl, C 2 -C 6 -alkynyl, C 3 -C 7 -cycloalkyl, dC 4 -alkylene-C 3 -C 7 -cycloalkyl, CC 4 -alkylene- Heterocyclo-alkyl, aryl, hetaryl, heterocycloalkyl, dC -alkylene-hetaryl or dC 4 -alkylene-aryl, or 0-R A 1 , CO-R A 1 , SR A 1 , SO-R A ⁇ CO-0-R A 1 , NR A 4 -CO-0-R A 1 , 0-CH 2
• R A 1 each optionally substituted dC 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 7 cycloalkyl, CC 4 alkylene-C 3 -C 7 cycloalkyl, dC 4 -Alkylene-heterocyclo-alkyl, aryl, hetaryl, heterocycloalkyl, dC 4 -alkylene-aryl, C 2 - C 6 -alkenyl-aryl or -CC 6 -alkylene-hetaryl;
• Hydrogen or in each case optionally substituted CC 6 -alkyl, d-Ce-alkylene-Od-Ce-alkyl), C 2 -C 6 -A) kenyl, C 3 -C 12 -alkynyl, CO-C C 6 -alkyl, CO-0-CC 6 -alkyl, S0 2 -CrC 6 -alkyl, C 3 -C 7 -cycloalkyl, aryl, dC 4 -alkylene-aryl, CO-O-arylalkyl, CO-C C 4 -alkylene-aryl, CO-aryl, S0 2 -aryl, hetaryl, CO-hetaryl or S0 2 -dC 4 -alkylene-aryl;
• radical A is defined, or in each case independently of one another two of the radicals A, B or R w 1 together form a 3 to 7-membered, optionally substituted, saturated or unsaturated carbocycle or an optionally substituted, saturated or unsaturated or aromatic heterocycle , which can contain one, two or three further different or identical heteroatoms from the group O, N, S; where optionally two radicals substituted on this carbo- or heterocycle together can form a fused, saturated, unsaturated or aromatic carbocycle or heterocycle, where the heterocycle can contain up to three different or identical heteroatoms O, N, S and where the cycle formed optionally substitutes may be or another, optionally substituted cycle may be fused onto this cycle;
• R w is hydrogen, OH, halogen, N0 2 , NH 2 , CN, CF 3 , CHF 2 , OCF 3 , OCHF 2 , or in each case optionally substituted dC 6 -alkyl, C 3 -C 7 -cycloalkyl, CC 6 - alkylene- 0-C 1 -C 6 -alkyl, CC 6 -thioalkyl, aryl, hetaryl, 0-CC 6 -alkyl, O-aryl, O-benzyl, -C-C 6 -alkylamino, CC 6 -dialkylamino, pyrrolidinyl, piperidinyl, Morpholinyl, CO-C C 6 alkyl, SO 2 -CC 6 -A!
• Z a radical of the general formula Z1
• Rz 1 , Rz 2 , Rz 3 , Rz 4 independently of one another: hydrogen, halogen, OH, or each optionally substituted CC 6 -alkyl, C 2 -C 6 -alkenyl, C 2 -C 6 -alkynyl, CC 6 -alkylene-C 3 -C 7 -cycloalkyl, C 3 -C 7 -cycloalkyl, aryl, CC 4 - Alkylene-aryl, hetaryl or CC 4 -alkylene-hetaryl, or in each case independently of one another two radicals R z 1 and R z 2 or R z 3 and R z 4 together form a 3 to 7-membered, optionally substituted, saturated or unsaturated carbo- or form a heterocycle, where the heterocycle can contain up to three heteroatoms from the group O, N or S;
• Rz 5 - Rz 5 * independently of one another: hydrogen or in each case optionally substituted dC 6 -alkyl, d-Ce-alkylene-Od-Ce-alkyl, C 2 -C 6 -alkenyl, C 3 -C 12 -alkynyl, CO-C C 6 -alkyl, CO-0-CC 6 -alkyl, S0 2 -dC 6 -alkyl, C 3 -C 7 -cycloalkyl, aryl, CC 4 -alkylene-aryl, CO-0-CC 4 - alkylene-aryl, CO-C 4 -alkylene-aryl, CO-aryl, S0 2 -aryl, hetaryl, CO-hetaryl or S0 2 -dC 4 -alkylene-aryl;
• Rz 6 , Rz 7 independently of one another: hydrogen, OH or in each case optionally substituted CC 6 alkyl, dC 4 alkoxy, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, dC 6 alkylene-C 3 -C 7- cycloalkyl, C 3 -C 7 -cycloalkyl, aryl, CC 4 -alkylene-aryl, hetaryl or CC -alkylene-hetaryl;
• R 1 , R 2 , R 3 independently of one another: hydrogen, OH, CN, or in each case optionally substituted CC 6 -alkyl, 0-CC 6 -alkyl, dC 6 - alkylene-Od-Ce-alkyl, C 3 -C 7 - Cycloalkyl, 0-C 3 -C ⁇ -cycloalkyl, aryl, hetaryl, dC 4 -alkylene-aryl, -C-C 4 -alkylene-hetaryl, O-aryl, 0-CC 4 -alkylene-aryl, O-hetaryl, OC 1 -C 4 alkylene hetaryl, CO-C C 6 alkyl, CO aryl, CO hetaryl, CO-C 4 -alkylene-aryl, CO-C 4 -alkylene-hetaryl, CO-0-CC 6 -alkyl, CO-O-aryl, CO-O-he
• Q a doubly substituted 5-membered hetaryl residue selected from Q1 to Q6
• E O, NR Q 1 or S; -.
• R ⁇ 1 hydrogen, or in each case optionally substituted CC-alkyl, CO-CrC-alkyl, SO 2 -CC 4 -alkyl, CO-0-CC 4 -alkyl, aryl, CC 4 -alkylene-aryl, CO-aryl, CO -Hetaryl, S0 2 -aryl, S0 2 -hetaryl, CO-O-aryl, CO-dC 4 -alkylene-aryl, S0 2 -CC 4 - alkylene-aryl or CO-0-CC 4 -alkylene-aryl;
• R 4 , R 5 each independently of one another a residue, selected from groups 1.), 2.), 3.), 4.) or 5.):
• R Q 5 each case optionally substituted C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C ⁇ -C 4 -alkylene-C 3 -C 7 cycloalkyl, -C 4 -alkylene-heterocycloalkyl, heterocycloalkyl, or hetaryl, or C 6 alkyl, which is optionally substituted with a substituent from the group consisting of halogen, N0 2 , NH 2 , OH, CN, CF 3 , CHF 2 , OCF 3 , OCHF 2 , NH- (CC 6 alkyl) and N (-C 6 alkyl) 2 ;
• R Q 6 each optionally substituted CC 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 7 cycloalkyl, CC 4 alkylene-C 3 -C 7 cycloalkyl, C ⁇ - C
• R Q 7 is hydrogen, OH, CN, or in each case optionally substituted CC 6 -alkyl, C 2 -C 6 -alkenyl, C 2 -C 6 -A) kinyl, C 3 -C 7 -cycloalkyl, CC 4 -alkylene-C 3 -C 7 -cycloalky !, CC 4 -alkylene-heterocycloalkyl, aryl, hetaryl, heterocycloalkyl, CrC 6 -alkylene-0-dC 6 -alkyl, CO-C C 6 -alkyl, dC 4 -alkylene-aryl, dC 4 -Alkylene-hetaryl, CO-aryl, CO-hetaryl, CO-C C 4 -alkylene-aryl, CO-dC 4 -alkylene-hetaryl, CO-0-CC 6 -alkyl, CO-O-aryl, CO-0 -
• R Q 8 each optionally substituted dC 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 7 cycloalkyl, CC 4 alkylene-C 3 -C 7 cycloalkyl, CC - Alkylene-heterocycloalkyl, aryl, hetaryl, heterocycloalkyl, dC 6 -alkylene-0-CC 6 -alkyl, CO-dC 6 -alkyl, CO-aryl, CO-hetaryl, CO-C C 4 -alkylene-aryl, CO-dC 4- alkylene-hetaryl, CO-O- d-C ⁇ -alkyl, CO-O-aryl, CO-0-CC 4 -alkylene-aryl, CO-O-hetaryl, CO-0-dC 4 -alkylene-hetaryl, S0 2 -CC 6 -alkyl, S0 2
• R Q 7 and R Q 8 together with the nitrogen form a 3 to 7-membered, optionally substituted, saturated or aromatic heterocycle which can contain one, two or three further different or identical heteroatoms O, N, S; and optionally two radicals substituted on this heterocycle together can form a fused, saturated, unsaturated or aromatic carbocycle or heterocycle, where the heterocycle can contain up to three different or identical heteroatoms O, N, S, and the cycle formed is optionally substituted may be or another, optionally substituted cycle may be fused onto this cycle;
• both radicals R 4 and R 5 together form a 4 to 7-membered, optionally substituted, saturated or unsaturated or aromatic carbocycle or a 5- or 6-membered optionally substituted, saturated or unsaturated or aromatic heterocycle, up to three more may contain different or identical heteroatoms O, N, S, and may be substituted with up to two further radicals, it being possible for two radicals substituted on this carbo- or heterocycle to together form an fused, saturated, unsaturated or aromatic carbocycle or heterocycle , wherein the heterocycle can contain up to three different or identical heteroatoms O, N, S and wherein the cycle formed can optionally be substituted or an a further, optionally substituted cycle may be fused onto this cycle;
• guanidine compounds have residues with the following definitions:
• R A 1 in each case optionally substituted dC-alkyl, C 3 -C 7 -cycloalkyl, phenyl or benzyl;
• R A 2 hydrogen, or in each case optionally substituted C t -C 4 -alkyl, phenyl, benzyl, phenethyl, CO-C C 4 -alkyl, CO-aryl, CO-0-CC 4 -alkyl, S0 2 -CC 4 - Alkyl, S0 2 -aryl, S0 2 -hetaryl, or S0 2 -dC 4 -alkylene-aryl;
• R A 3 each optionally substituted dC 4 alkyl, phenyl, benzyl, phenethyl, CO-C C 4 -A) ky), CO-aryl, CO-0-CC 4 -alkyl, S0 2 -CC-alkyl, S0 2- aryl, S0 2 -hetaryl, or S0 2 - dC 4 -alkylene-aryl; or both radicals R A 2 and R A 3 together form an optionally substituted 5- or 6-membered saturated or unsaturated ring which can contain up to two identical or different heteroatoms from the group O and N.
• R A 4 hydrogen or an optionally substituted C r C alkyl radical
• R w 1 hydrogen, F, Cl, CN, CF 3 , 0-CF 3 , or in each case optionally substituted CC 4 alkyl, aryl, dC 6 - alkylamino or C 1 -C 6 dialkylamino; in the formula Z1 the sum of a, b, c is 1, 2 or 3;
• R z 1, R z 2 , Rz 3 'R z 4 independently of one another: hydrogen, halogen, OH, optionally substituted CC 6 alkyl;
• V z -CO-, -CO-NR z 5 -, -NR z 5 -CO-, -O-, -S-;
• R z 5 hydrogen, CH 3 ;
• R 1, R 2, R 3 independently of one another: hydrogen, OH, CN, d-4 alkyl, dC ß -alkylene-Od-Ce-alkyl, substituted aryl, benzyl, CO-dC 6 alkyl, CO-aryl, CO-dC 4 - alkylene-aryl, OCO-C C 6 -alkyl, OCO-aryl or OCO-C, -C 4 -alkylene-hetaryl;
• Q is selected from the group consisting of Q1, Q2 and Q3;
• R Q hydrogen, optionally substituted dC 4 alkyl, optionally substituted benzyl in the aryl radical, CO-dC 4 alkyl, optionally substituted benzoyl, S0 2 -C 1 -C 4 alkyl or optionally substituted S0 2 aryl in the aryl radical.
• guanidine compounds have residues with the following definitions:
• R w 1 hydrogen, F, Cl, CN, CF 3 or 0-CF 3 ;
• Rz 1 'Rz 2 , Rz 3 ' Rz 4 each independently of one another hydrogen, F, CH 3 ;
• R 1 , R 2 , R 3 independently of one another: hydrogen, OH, CN, O-methyl, O-phenyl, acetyl, benzoyl, O-acetyl, O-benzoyl;
• Q is selected from the group consisting of
• R Q 1 hydrogen, CH 3 , methanesulfonyl, phenylsulfonyl or tosyl.
• guanidine compounds have radicals with the following definitions:
• R 4 and / or R 5 each independently represent a radical selected from groups 1), 2), 3), 4) or 5):
• R Q 5 d ⁇ C 4 alkyl, which is optionally substituted with a substituent from the group consisting of F, Cl, -OH, -CN, -CF 3 , - OCF 3 , NH- (C 4 -alkyl) and N (C 4 alkyl) 2 ;
• R Q 6 each optionally substituted dC 6 alkyl, aryl, hetaryl or phenyl;
• RQ 7 is hydrogen, in each case optionally substituted dC 4 -alkyl, allyl, aryl, hetaryl, benzyl, phenethyl or CH 2 -hetaryl;
• R Q 8 each optionally substituted dC 4 -alkyl, allyl, aryl, hetaryl, benzyl, phenethyl or CH 2 -hetaryl; or R Q 7 and RQ 8 form an optionally substituted 3- or 7-membered saturated or unsaturated ring which can contain up to two identical or different heteroatoms from the group O and N;
• R Q 2 and R Q 3 are as defined under 2.
• R 4 and R 5 is selected from Group 1 and the other of R 4 and R 5 is selected from Group 1, 2 or 3.
• the present invention also relates to the use of these guanidine compounds as pharmaceuticals and pharmaceutical compositions containing at least one of these guanidine compounds and a pharmaceutically acceptable carrier or diluent.
• the present invention also relates to the use of these guanidine compounds in the manufacture of a medicament for the treatment of diseases that are modulated by 5-HT5 receptor activity, as set forth in detail below.
• the present invention further relates to the use of compounds of the general formula IVa for the preparation of 5HT5 receptor ligands: W- Z -NH,
• the present invention further relates to the use of a guanidine compound of the general formula IA
• W a radical of the general formula W1 or W2
• each optionally substituted dC 6 -A) ky C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, CC 4 alkylene-C 3 -C 7 cycloalkyl, CC 4 alkylene heterocycloalkyl, aryl, hetaryl , Heterocycloalkyl, -CC 4 alkylene aryl, CC 4 alkylene hetaryl, d-Cs-alkylene-Od-Ce-alkyl, CO-C C 6 alkyl, CO-aryl, CO-hetaryl, CO-dC 4 -alkylene-aryl, CO-C C 4 -alkylene-hetaryl, CO-0-CC 6 -alkyl, CO-O-aryl, CO-0-CC 4 -alkylene-aryl, CO-O-hetaryl, CO- 0-CC 4 -alkylene-aryl, CO-O-hetaryl, CO- 0-
• radicals R A 2 and R A 3 together with the nitrogen are a 3 to 7-membered, optionally substituted, saturated or aromatic Heterocycle, which can contain one, two or three further different or identical heteroatoms from the group O, N, S; where optionally two radicals substituted on this heterocycle together can form a fused, saturated, unsaturated or aromatic carbocycle or heterocycle, where the heterocycle can contain up to three different or identical heteroatoms O, N, S, and the cycle thus formed may be substituted can or another, optionally substituted cycle can be fused onto this cycle;
• C ⁇ -C 6 -alkyl C 6 alkylene-0-dC 6 - alkyl, C 2 -C 6 alkenyl, C 3 -C 12 alkynyl, CO-C 6 alkyl, C , CO-0-CC 6 -alkyl, SO 2 -C ⁇ -C 6 -alkyl, C 3 -C 7 -cycloalkyl, aryl, CC 4 -alkylene-aryl, CO-O-arylalkyl, CO-dC 4 -alkylene- Aryl, CO-aryl, SO 2 -aryl, hetaryl, CO-hetaryl or S0 2 -dC 4 -alkylene-aryl;
• radical A is defined, or in each case independently of one another two of the radicals A, B or R w 1 together form a 3 to 7-membered, optionally substituted, saturated or unsaturated carbocycle or an optionally substituted, saturated or unsaturated or aromatic heterocycle , which can contain one, two or three further different or identical heteroatoms from the group O, N, S; where optionally two radicals substituted on this carbo- or heterocycle together can form a fused, saturated, unsaturated or aromatic carbocycle or heterocycle, where the heterocycle can contain up to three different or identical heteroatoms O, N, S and where the cycle formed optionally substitutes may be or another, optionally substituted cycle may be fused onto this cycle;
• R w is hydrogen, OH, halogen, N0 2 , NH 2 , CN, CF 3 , CHF 2 , OCF 3 , OCHF 2 , or in each case optionally substituted CC 6 -alkyl, C 3 -C 7 -
• Rz 1, Rz 2, Rz 3 Rz 4 each independently: hydrogen, halogen, OH, or optionally substituted CC 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 - alkynyl, dC 6 alkylene C 3 -C 7 cycloalkyl, C 3 -C 7 cycloalkyl, aryl, C, -C 4 - alkylene aryl, hetaryl or CC 4 alkylene hetaryl, or each independently of one another two radicals R z 1 and R z 2 or R z 3 and R z 4 together form a 3 to 7-membered, optionally substituted, saturated or unsaturated carbo- or heterocycle which contains up to three heteroatoms from the group O, N or may contain S form;
• Rz 5, 5 * Rz are independently hydrogen, or optionally substituted dC 6 -alkyl, C 6 alkylene-OC C 6 - alkyl, C 2 -C 6 alkenyl, C 3 -C 12 -alkynyl, CO -C 6 -alkyl, CO-0-CC 6 -alkyl, S0 2 -CC 6 -alkyl, C 3 -C 7 -cycloalkyl, aryl, CC -alkylene-aryl, CO : ⁇ 0-CC 4 - alkyl ⁇ - Aryl, CO-C 1 -C 4 -alkylene-ary), CO-aryl, S0 2 -aryl, hetaryl, CO-hetaryl or S0 2 -dC 4 -alkylene-aryl;
• Rz 6 , Rz 7 independently of one another: hydrogen, OH, or in each case optionally substituted CC 6 -alkyl, CC 4 -alkoxy, C 2 -C 6 -alkenyl, C 2 -C 6 -alkynyl, CrC 6 -alkylene-C3-C 7- cycloalkyl, C 3 -C 7 -cycloalkyl, aryl, CC 4 -alkylene-aryl, hetaryl or CC 4 -alkylene-hetaryl;
• R ⁇ R 2 , R 3 independently of one another: hydrogen, OH, CN, or in each case optionally substituted CC 6 -alkyl, 0-CC 6 -alkyl, dC 6 - alkylene-0-CC 6 -alkyl, C 3 -C 7 - Cycloalkyl, 0-C 3 -C 7 -cycloalkyl, aryl, hetaryl, dC 4 -alkylene-aryl, CC 4 -alkylene-hetaryl, O-aryl, 0-CC -alkylene-aryl, O-hetaryl, 0-CC 4 -Alkylene-hetaryl, CO-dC 6 -alkyl, CO-aryl, CO-hetaryl, CO-C C 4 -alkylene-aryl, CO-C C -alkylene-hetaryl, CO-0-CC 6 -alkyl, CO- O-aryl, CO-O-hetaryl,
• Q a doubly substituted 5-membered hetaryl residue selected from Q1 to Q6
• Q4 Q5 Q6 E O, NR Q 1 or S;
• C ⁇ -C 4 alkyl Hydrogen, or optionally substituted C ⁇ -C 4 alkyl, CO-C C 4 alkyl, S0 2 -CC 4 alkyl, CO-0-C 1 -C 4 alkyl, aryl, CC 4 alkylene-aryl, CO-aryl, CO-hetaryl, S0 2 -aryl, S0 2 -hetaryl, CO-O-aryl, CO-C ⁇ -C 4 -alkylene-aryl, S0 2 -CC 4 - alkylene-ary) or CO-0- CC 4 alkylene ary);
• R, R 5 each independently of one another are selected from the groups 1.), 2.), 3.), 4.) or 5.):
• RQ 2 , RQ 3 and R Q 4 each independently represent a substituent from the following group:
• R Q 5 each optionally substituted dC 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, dd-alkylene-dd-cycloalkyi, CC 4 -alkylene-.
• R Q 6 each optionally substituted CC 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 7 cycloalkyl, CC 4 alkylene-C 3 -C 7 cycloalkyl, CC 4 -Alkylene-heterocycloalkyl, aryl, hetaryl, heterocycloalkyl or -CC 6 -alkyler.-O-CrC 6 -alkyl;
• R Q 7 is hydrogen, OH, CN, or in each case optionally substituted CC 6 -alkyl, C 2 -C 6 -alkenyl, C 2 -C 6 -alkynyl, C 3 -C r -cycloalkyl, C 1 -C 4 -alkylene- C 3 -C 7 cycloalkyl, CC 4 alkylene heterocycloalkyl, aryl, hetaryl, heterocycloalkyl, d-Ce alkylene odd alkyl, CO-C C 6 alkyl, CC 4 alkylene aryl, CC 4 alkylene -Hetaryl, CO-aryl, CO-hetaryl, CO-C r C 4 -alkylene-aryl, CO-C C 4 -alkylene-hetaryl, CO-0-dC 6 -alkyl, CO-O-aryl, CO-0 -dC 4 -alkylene-aryl, CO-O
• R Q 8 each optionally substituted CC 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 7 cycloalkyl, CC 4 alkylene-C 3 -C 7 cycloalkyl, dC-alkylene heterocycloalkyl, aryl, hetaryl, heterocycloalkyl, dC 6 -alkylene-0-C ⁇ -C 6 -alkyl, CO-C C 6 -alkyl, CO-aryl, CO-hetaryl, CO-dC 4 -alkylene-aryl , CO-C C 4 -alkylene-hetaryl, CO-O-d-C ⁇ -alkyl, CO-O-aryl, CO-0-CC 4 -alkylene-aryl, CO-O-hetaryl, CO-0-dC 4 -Alkylene-hetaryl, S0 2 -CC 6 -alkyl, S0
• brain damage and / or disorders include cerebral ischemia, stroke, epilepsy and seizures in general, psychoses, schizophrenia, autism, OCD syndrome, cognitive disorders, attention deficit disorders, depression, bipolar and / or unipolar depression, anxiety, dementia, senile dementia , Alzheimer's dementia, demyelinating diseases, multiple sclerosis and brain tumors.
• cerebrovascular disorders pain, pain-related disorders, addiction, drug-related disorders, amnesia, alcohol abuse, drug abuse, disorders of the circadian rhythm and Cushing's syndrome.
• radicals of the formulas I or IA have the following meanings:
• W is as defined above and preferably represents W1.
• A is as defined above and preferably means
• Halogen OH, CN, CF 3 , CHF 2 , OCF 3 , OCHF 2 , or in each case optionally substituted d-Ce alkyl or C 2 -C 6 alkenyl,
• A is preferred
• A is particularly preferably halogen, OH, OCF 3 , OCHF 2 , optionally substituted C 1 -C 4 -alkyl, 0-R A 1 or SR A 1 .
• A is more preferably halogen, OH, OCF 3 , OCHF 2 , in each case optionally substituted C 1 -C 4 -alkyl, OdC 4 -alkyl, O-benzyl, O-phenyl or SC C -alkyl.
• A, OH, F, Cl, OCF 3 , OCHF 2 , C 1 -C 4 -alkyl, 0-C 1 -C 4 -alkyl or SC C -alkyl is even more preferred.
• A is most preferably OH, OCF 3 , OCH 3 , O-ethyl, on-propyl or oi-propyl.
• A is preferably in the 2- or 4-position on the ring, more preferably in the 2-position.
• R A 1 is as defined above and preferably means in each case optionally substituted -CC alkyl, C 3 -C 7 cycloalkyl, phenyl or benzyl.
• R A 1 is more preferably methyl, ethyl, n-propyl or i-propyl. Most preferably R A 1 is methyl or ethyl.
• R A 2 is as defined above and is preferably hydrogen or each optionally substituted C 1 -C 4 -alkyl, phenyl, benzyl, phenethyl, CO-C C 4 -alkyl, CO-aryl, CO-OC C 4 -alkyl, S0 2 -dC 4 -alkyl, S0 2 -aryl, S0 2 -Hetaryl, or S0 2 - C., - C 4 alkylene aryl.
• R A 2 is more preferably hydrogen, C 1 -C 4 -alkyl, phenyl or benzyl.
• R A 2 is preferably hydrogen, methyl, ethyl, n-propyl, i-propyl or phenyl.
• R A 3 is as defined above and preferably each represents optionally substituted d_-alkyl, phenyl, benzyl, phenethyl, CO-C C 4 -alkyl, CO-aryl, CO-O-Crd-alkyl, S0 2 -dC 4 -alkyl , S0 2 aryl, S0 2 hetaryl, or S0 2 -C ⁇ -C 4 alkylene aryl.
• the two radicals R A 2 and R A 3 can, as described above, together with the nitrogen form a 3-7-membered heterocycle. Both radicals R A 2 and R A 3 preferably together form an optionally substituted 5- or 6-membered saturated or unsaturated ring which may contain one or two further identical or different heteroatoms from the group O, N and S.
• R A 4 is as defined above and is preferably hydrogen or an optionally substituted dC -alkyl radical. Most preferably R A 4 is hydrogen, methyl, ethyl, n-propyl or i-propyl.
• B is as defined above and preferably means
• B is hydrogen, halogen, OH, OCF 3, OCHF 2, in each case optionally substituted C1-C 4 - alkyl, 0-CC 4 alkyl, O-benzyl, O-phenyl, or S- CC ⁇ alkyl.
• B is hydrogen, OH, F, Cl, OCF 3, OCHF 2, d- C 4 - alkyl, 0-CC 4 alkyl or SC C 4 alkyl.
• B is hydrogen, OH, OCF 3 , OCH3, O-ethyl, on-propyl or o-propyl.
• B is preferably in the 5- or 6-position on the ring, more preferably in the 6-position.
• R w 1 is as defined above and is preferably hydrogen, F, Cl, CN, CF 3 , CHF 2 , O-CF 3 , OCHF 2 , optionally substituted CC 4 alkyl, OC C 4 alkyl, aryl, d-Ce Alkylamino or Ci-Ce dialkylamino. More preferably R w is hydrogen, F, Cl, CN, CF 3 or O-CF 3 , OMe, most preferably hydrogen.
• D is as defined above and preferably means
• Halogen OH, CN, CF 3 , CHF 2 , OCF 3 , OCHF 2 , in each case optionally substituted dC 6 alkyl or C 2 -C 6 alkenyl,
• D halogen, OH, OCF 3 , OCHF 2 in each case optionally substituted dC 4 alkyl, 0-C 1 -C 4 -alkyl, O-benzyl, O-phenyl or SdC 4 -alkyl.
• W preferably represents a radical which is composed of the preferred combinations of A, B, R A , R A 2 , R A 3 , R A 4 and R w 1 .
• Z is as defined above, the sum of indices a, b and c being 1, 2, 3, 4 or 5, preferably 1, 2 or 3, more preferably 1 or 2.
• a is 0, 1, 2, 3 or 4, preferably 1, 2 or 3, more preferably 1 or 2.
• Index b is 0 or 1, preferably 0.
• Index c is 0, 1, 2, 3 or 4, preferably 0, 1 or 2, most preferably 0.
• Z is preferably in each case optionally substituted C 4 alkylene or d 4 alkyleneoxy, more preferably -CH 2 -, -CH 2 -0-, -CH 2 -CH 2 -, -CH 2 -CH 2 -CH 2 - or -CH 2 - CH 2 -0-, more preferably -CH 2 -, -CH 2 -0-, -CH 2 -CH 2 - or -CH 2 -CH 2 -0-, most preferably -CH 2 ⁇ ,
• Rz 1, Rz 2 , Rz 3 , Rz 4 are as defined above and are preferably independently of one another hydrogen, halogen, OH or optionally substituted C 1 -C 6 -alkyl, more preferably hydrogen, F or CH 3 . Most preferably R z 1, R z 2 , R z 3 and R z 4 are simultaneously hydrogen.
• V 2 is as defined above and preferably denotes -CO-, -CO-NR H -, -NR ; CO-, -O-, -S-, more preferably -O- or -S-, most preferably -0-.
• R z 5 and R z 5 * are as defined above and preferably independently of one another are hydrogen or CH 3 .
• R z 6 and R z 7 are as defined above and are preferably independently hydrogen or CH 3 , most preferably hydrogen.
• R 1 , R 2 , R 3 are as defined above and preferably independently of one another are hydrogen, OH, CN, dC 4 -alkyl, Ci-Ce-alkylene-O-Ci-Ce-alkyl, optionally substituted aryl, benzyl, CO- dC 6 -alkyl, CO-aryl, CO-dC-alkylene-aryl, OCO-C C 6 -alkyl, O-CO-aryl or O-CO ⁇ dC 4 -alkylene-hetaryl, CO-0-dC 4 - alkyl , 0-CO-dC 4 -alkyl, CO-OBenzyl, O-CO-benzyl, more preferably hydrogen, OH, CN, O-methyl, O-phenyl, acetyl, benzoyl, O-acetyl, O-benzoyl, CO- 0-d ⁇ C 4 alkyl, O-CO-C ⁇ -d-al
• radicals R 1 , R 2 , or R 3 are hydrogen
• the third radical is hydrogen, OH, acetyl, benzoyl, CO-0-C 1 -C 4 -alkyl, 0-CO-C 1 -C 4 -alkyl, most preferred are all R 1 , R 2 , and R 3 are hydrogen.
• Q is as defined above and preferably means a radical of the formulas Q1, Q2, Q3 or Q5. In one embodiment, Q means a remainder of the formulas Q1, Q2
• E is as defined above and is preferably S or O, more preferably S.
• R Q is as defined above and preferably means hydrogen, optionally substituted C 1 -C 4 -alkyl, optionally substituted benzyl in the aryl radical, CO-C 1 -C 4 -alkyl, optionally substituted benzoyl, S0 2 -C 1 -C 4 -alkyl or optionally substituted in the aryl radical S0 2 aryl. More preferably R Q is hydrogen, CH 3 , phenyl, benzyl, methanesulfonyl, phenylsulfonyl or tosyl, most preferably hydrogen.
• R Q 1 is as defined above and is preferably hydrogen, optionally substituted C ⁇ -C 4 - alkyl, in the aryl radical, optionally substituted benzyl, CO-C ⁇ -C4 alkyl, optionally substituted benzoyl, S0 2 -C ⁇ -C -Alkyl or optionally substituted SO 2 aryl in the aryl radical. More preferably R Q 1 is hydrogen, CH, methanesulfonyl, phenylsulfonyl or tosyl, most preferably hydrogen.
• R 4 and R 5 are as defined above and preferably have the following definitions:
• R 4 and / or R 5 are as defined above, preferably in each case independently of one another in each case a radical selected from the group consisting of
• Ce alkyl or C 3 -C cycloalkyl are particularly preferred.
• Hydrogen, d ,C 4 alkyl for example methyl, ethyl, n-propyl, i-propyl or tert-butyl, cyclopentyl or cyclohexyl or, are particularly preferred
• R 4 and / or R 5 are as defined above, preferably phenyl which is substituted by R Q 2 , R Q 3 and R Q 4 .
• RQ 2 , RQ 3 and R Q 4 are as defined above and preferably each independently represent a substituent from the following group:
• Cycloalkyl C 1 -C 4 alkylene-C -C 7 cycloalkyl, dC -alkylene heterocycloalkyl, dC 4 -
• hydrogen, CF 3 , -OCF 3 , 0-CH 3 , -OCHF 2 , OH, N (CH 3 ) 2 , Cl and F are preferred.
• hydrogen, CF 3 , -OCF 3 , O-CH 3 , Cl and F are preferred.
• two of the radicals from R Q 2 , R Q 3 or R Q 4 together form a 3 to 7-membered, optionally substituted, saturated, unsaturated or aromatic carbocycle or an optionally substituted, saturated, unsaturated aromatic heterocycle , which can contain up to three further different or identical heteroatoms 0, N, S, and optionally two radicals substituted on this heterocycle can together form an fused, saturated, unsaturated or aromatic carbocycle or heterocycle which contains up to three different or identical heteroatoms O , N, S may contain, and the cycle formed may be optionally substituted or another, optionally substituted cycle may be fused to this cycle.
• R Q 2 , R Q 3 or R Q 4 preferably together form a 5- or 6-membered, more preferably 5-membered, heterocycle which contains a further heteroatom O, N, S, preferably O.
• the heterocycle is preferably saturated.
• R Q 2 , R Q 3 and R Q 4 are preferably each hydrogen or two of the substituents are hydrogen and the third substituent is a radical other than hydrogen.
• R Q 5 is as defined above and preferably each represents optionally substituted Ci-Ce alkyl or C 2 -C 6 alkenyl, more preferably dC 4 alkyl which is optionally substituted with a substituent from the group consisting of F, Cl , -OH, -CN, -CF 3 , -CHF 2 , -OCF 3 , -OCHF 2 , NH- (d- 4 alkyl) and N (C 4 alkyl) 2 , most preferably methyl or ethyl.
• R Q 5 is dC ⁇ alkyl heterocycloalkyl, more preferably C 1 -C 2 alkyl heterocycloalkyl, the heterocycloalkyl preferably being a 5- or 6-membered ring with 1 to 3, more preferably 1 or 2, heteroatoms from N, O or S, more preferably N or O.
• R Q 5 is morpholino.
• R Q 6 is as defined above and preferably each represents optionally substituted dC 6 alkyl, C 2 -C 6 alkenyl, C 3 -C 7 cycloalkyl, aryl, hetaryl or dC 6 - alkylene-O-Ci-C ⁇ -alkyl , more preferably in each case optionally substituted C ⁇ -C 6 - alkyl, aryl, hetaryl, more preferably C ⁇ -C 4 alkyl, C 3 -C 7 cycloalkyl, aryl, or C ⁇ -C 6 - alkylene-0-C ⁇ -C 6 -Alkyl, most preferably methyl, ethyl, cyclohexyl or phenyl.
• R Q 7 is as defined above and preferably means
• Alkyl more preferably hydrogen, each optionally substituted C 1 -C 4 -alkyl,
• hydrogen, C 1 -C 4 -alkyl, phenyl or benzyl is even more preferred, most preferably hydrogen, methyl, ethyl or phenyl.
• Q R 8 is as defined above and is preferably hydrogen, optionally substituted C ⁇ -C 6 alkyl, C 2 -C 6 alkenyl, C 3 -C 7 cycloalkyl, aryl, hetaryl, dC -alkylene-aryl, dC - Alkylene-hetaryl or C ⁇ Ce-alkylene-Od-Ce-alkyl, CO-C ⁇ -C 4 alkyl, S0 2 -C ⁇ -C alkyl.
• Hydrogen C1-C4-alkyl, phenyl, or benzyl, most preferably hydrogen, methyl, ethyl, or phenyl.
• the two radicals R Q 7 and R Q 8 together with the nitrogen form an optionally substituted 3- or 7-membered saturated or unsaturated ring which may contain one N or two N or in each case one O and one N, form. Even more preferably, the two radicals R Q 7 and R Q 8 together with the nitrogen form a 5- or 6-membered, optionally substituted, saturated heterocycle which can contain a further heteroatom 0, N, or S, preferably O or N. , A 5-membered saturated heterocycle with an N and a 6-membered saturated heterocycle with 2 N or 1 N and 10 are preferred.
• R 4 and / or R 5 are preferably each independently a radical selected from the group consisting of 2-pyrrolyl, 3-pyrrolyl optionally substituted with 1 or 2 substituents,
• Halogen in particular Cl, -N0 2 , -NH 2 , -OH, -CN, -CF 3 , -OCF 3 , -CHF 2, 0-CHF 2 , CC 6 -
• Alkyl especially methyl or ethyl, 0-dC 6 -AlkyI, NH- (-C-C 6 -alkyl) and N (C.-C 6 -
• Alkyl) 2 NHCO-dC 4 -alkyl, NHS0 2 -dC 4 -alkyl and S0 2 -dC 4 -alkyl.
• Benzothiophenyl, benzofuranyl, quinolinyl, isoquinolinyl, 2-thienyl or 3-thienyl are particularly preferred, the latter two preferably being substituted by halogen, in particular Cl, -C 6 -alkyl, in particular methyl or ethyl.
• R 4 and / or R 5 are preferably each independently 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-pyrimidyl, 4-pyrimidyl, 5-pyrimidyl, 6-pyrimidyl, 2-thienyl, 3- Thienyl, benzothiophenyl, benzofuranyl, benzimidazolyl, quinolinyl or isoquinolinyl, more preferably 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-thienyl, 3-thienyl, benzothiophenyl, benzofuranyl, quinolinyl, or isoquinolinyl, optionally with 1 or 2 residues can be substituted.
• the radicals are preferably selected from the group consisting of halogen, in particular Cl or F, -N0 2 , -NH 2 , -OH, -CN, -CF 3 , -0CF 3 , -CHF 2 , 0-CHF 2 , dC 6- alkyl, in particular methyl or ethyl, 0 -CC-C 6 -alkyl, NH- (dC 6 -alkyl) and N (dC 6 -alkyl) 2) NHCO-dC 4 - Alkyl, NHS0 2 -C-C 4 alkyl and S0 2 -dC 4 alkyl, most preferably halogen, in particular Cl or F, dC 6 alkyl, in particular methyl or ethyl.
• both radicals R 4 and R 5 preferably together form one of the following rings:
• both R 4 and R 5 preferably together form one of the following rings:
• R Q 2 , R Q 3 and R Q 7 are as defined under 2), including the preferred embodiments.
• both R Q 2 and R Q 3 are hydrogen, or one substituent is hydrogen and the other is a substituent other than hydrogen.
• the other substituent is preferably methyl or 0-dC 3 alkyl. It is also preferred that both substituents are methyl or one substituent is methyl and the other is halogen.
• RQ 2 and R Q 3 together form a phenyl ring.
• R Q 7 is as defined under 2), preferably hydrogen, C (0) -dC -alkyl, S0 2 -aryl or CC 4 -alkylene- Aryl, more preferably hydrogen, C (0) -CH, S0 2 -phenyl or benzyl.
• Both substituents R Q 2 and R Q 3 on the nitrogen-containing ring are preferably hydrogen.
• R 4 and / or R 5 are preferably adamantyl.
• One of the two radicals R 4 and R 5 is preferably selected from group 1.), including the preferred embodiments thereof, and the other radical is selected from group 1.), 2.) or 3.), including the respective preferred Embodiments thereof selected.
• the first radical of R 4 and R 5 is preferably methyl or hydrogen.
• R 4 , R 5 are preferably C 1 -C 4 -alkyl-NH 2 , dC 4 -alkyl-NR Q 7 R Q 8 , -C-C 4 - alkyl-CO-NR Q 7 R Q 8 , CO-NR Q 7 R Q 8 or NR Q 7 R Q 8 .
• R Q 7 and R Q 8 are defined as under 2), including the preferred embodiments.
• R Q 7 is particularly preferably hydrogen and R Q 8 is C (0) 0-dC 4 -alkyl, C (0) -aryl, or S0 2 -dC 6 -alkyl.
• both R Q 7 and R Q 8 can be CC 4 alkyl.
• C 1 -C 4 alkyl preferably denotes a methylene or ethylene radical.
• R Q 7 is particularly preferably hydrogen and R Q 8 is dC -alkyl, C 2 ⁇ C 6 -alkenyl, or -CC 4 -alkylene-aryl, more preferably isopropyl, propenyl or benzyl.
• R 4 , R 5 are preferably optionally substituted azetidin-3-yl, pyrrolidin-2-yl, pyrrolidin-3-yl, piperidin-2-yl, piperidin-3-yl, piperidin-4- yl, tetrahydro-2H-pyran-4-yl, tetrahydrofuran-3-yl, azepan-4-yl, azepan-3-yl, azepan-2-yl, 1, 4-diazepan-5-yl, 1, 2, 3,6-tetrahydropyridin-4-yl, 2,5-dihydro-lH-pyrrol-3-yl, particularly preferred:
• R Q 7 is as defined under 2), including the preferred embodiments.
• R Q 7 is particularly preferably hydrogen, dC 4 alkyl, C (O) -C 4 -C 4 alkyl, C 4 -C 4 alkylene aryl, S0 2 aryl or S0 2 -C 1 -C alkyl.
• R Q 7 is hydrogen, methyl, isopropyl, C (0) -Me, S0 2 -phenyl, S0 2 -Me or benzyl.
• one of the two residues R 4 and R 5 is selected from group 1), including the preferred embodiments from group 1, and the other residue of R 4 and R 5 is preferably methyl or hydrogen.
• one of the two residues R 4 and R 5 is selected from group 2), including the preferred embodiments from group 2, and the other residue of R 4 and R 5 is preferably methyl or hydrogen.
• one of the two residues R 4 and R 5 is selected from group 3), including the preferred embodiments from group 3, and the other residue of R 4 and R 5 is preferably methyl or hydrogen.
• one of the two residues R 4 and R 5 is selected from group 4), including the preferred embodiments from group 4, and the other residue of R 4 and R 5 is preferably methyl or hydrogen.
• one of the two residues R 4 and R 5 is selected from group 6), including the preferred embodiments from group 6, and the other residue of R 4 and R 5 is preferably methyl or hydrogen.
• one of the two residues R 4 and R 5 is selected from group 7), including the preferred embodiments from group 7, and the other residue of R 4 and R 5 is preferably methyl or hydrogen.
• Q preferably represents a radical which is composed of the preferred combinations of E, R Q 1 , R 4 , R 5 , R Q 2 , R Q 3 , R Q 4 , R Q 5 , R Q 6 , R Q 7 and R Q 8 is composed.
• Alkyl is a straight-chain or branched saturated hydrocarbon chain with the specified number of carbon atoms, preferably 1 to 6, more preferably 1 to 4 carbon atoms, such as methyl, ethyl, propyl, 1-methylethyl, butyl, 1-methylpropyl, 2-methylpropyl, 1 , 1-dimethylethyl, pentyl, 1-methylbutyl, 2-methylbutyl, 1,2-dimethylpropyl, 1, 1-dimethylpropyl, 2,2-dimethylpropyl, -ethylpropyl, n-hexyl, 1-methylpentyl, 1,2-dimethylbutyl, 1,3-dimethylbutyl, 2,3-dimethylbutyl, 1,1-dimethylbutyl, 2,2-dimethylbutyl, 3,3-dimethylbutyl, 1,1,2-trimethylpropyl, 1,2,2-trimethylpropyl, 1-e
• Alkylene is an alkyl group, as defined above, in which a hydrogen atom is replaced by a bond.
• Cycloalkyl is a saturated hydrocarbon ring with 3 to 7, preferably 3 to 6 carbon atoms, such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl or cycloheptyl.
• Alkylene-O-alkyl is a straight-chain or branched saturated alkyl ether chain, where both the alkylene radical and the alkyl radical independently of one another contain 1 to 6, more preferably 1 to 4, most preferably 1 or 2 carbon atoms, both radicals being as defined above, which contains up to a total of 2 to 12 carbon atoms and one oxygen atom:
• Preferred examples of alkylene-O-alkyl include methoxymethylene, ethoxymethylene, t-butoxymethylene, methoxyethylene or ethoxyethylene.
• Thioalkyl is a straight or branched alkylene sulfanyl chain containing 1 to 6 carbon atoms and one sulfur atom.
• the alkylene radical preferably contains 1 to 4, more preferably 1 or 2 carbon atoms, alkylene being as defined above.
• Examples of thioalkyl include thiomethyl or thio-tert-butyl.
• Alkenyl is a branched or unbranched hydrocarbon chain containing at least one double bond with 2 to 6, preferably 2 to 4, carbon atoms. Preferably alkenyl contains one or two double bonds, most preferably one double bond.
• alkenyl groups are those as mentioned above for alkyl, these groups containing one or two double bonds, such as vinyl, 2-propenyl, 2-butenyl, 3-butenyl, 1-methyl-2-propenyl, 2-methyl -2-propenyl, 2-pentenyl, 3-pentenyl, 4-pentenyl, 1-methyl-2-butenyl, 2-methyl-2-butenyl, 3-methyl-2-butenyl, 1-methyl-3-butenyl, 2 -Methyl-3-butenyl, 3-methyl-3-butenyl, 1, 1-dimethyl-2-propenyl, 1, 2-dimethyl-2-propenyl, 1-ethyl-2-propenyl, 2-hexenyl, 3-hexenyl , 4-hexenyl, 5-hexenyl, 1-methyl-2-pentenyl, 2-methyl-2-pentenyl, 3-methyl-2-pentenyl, 4-methyl-2-pentenyl, 3-methyl-3-pentenyl, 1-
• Alkynyl is a branched or unbranched hydrocarbon chain containing at least one triple bond with 2 to 6, preferably 2 to 4, carbon atoms.
• Preferably alkynyl contains one or two triple bonds, most preferably a triple bond.
• Examples of the alkynyl groups are those as mentioned above for alkyl, these groups containing one or two triple bonds, for example ethynyl, 2-pentynyl, 3-pentynyl, 4-pentynyl, 1-methyl-3-butynyl, 2-methyl -3-butynyl, 1-methyl-2-butynyl, 1, 1-dimethyl-2-propynyl, 1-ethyl-2-propynyl, 2-hexynyl, 3-hexynyl, 4-hexynyl, 5-hexynyl, 1-methyl -2-pentynyl, 1-methyl-2-pentynyl, 1-methyl-3-pentynyl, 1-methyl
• Heterocycloalkyl is a saturated alkyl ring or an alkyl ring to which a further saturated alkyl ring is fused, with preferably 3 to 10 ring atoms in total, more preferably 3 to 6 ring atoms, most preferably 5 or 6 ring atoms, this heterocycloalkyl being selected from at least one hetero atom of the group O, N or S, and contains 1 to 6, preferably 1 to 5 carbon atoms.
• Heterocycloalkyl preferably contains 1 or 2 heteroatoms, which are preferably formed from N and / or O.
• heterocycloalkyl group examples include, for example, N-pyrrolidinyl, N-piperidinyl, N-hexahydroazepinyl, N-morpholinyl or N-piperazinyl, and in the case of heterocycles which contain amino groups, such as N-piperazinyl, these amino groups by common radicals, such as methyl, benzyl , Boc (tert-butoxycarbonyl), benzyloxycarbonyl, tosyl (p-toluenesulfonyl), -S0 2 -C ⁇ -C 4 alkyl, -S0 2 -phenyl or -S0 2 -benzyl can be replaced.
• Aryl is an aromatic mono-, bi- or polycyclic radical having preferably 6 to 20 carbon atoms, more preferably e to 10 carbon atoms and is preferably selected from phenyl, biphenyl, naphthyl, tetrahydronaphthyl, fluorenyl, indenyl and phenanthrenyl, more preferably from phenyl and naphthyl such as 1-naphthyl or 2-naphthyl. Most preferred is phenyl.
• Alkylene aryl is an aryl bonded via C 1 -C 6 , more preferably dC 4 alkylene, optionally substituted in the aryl radical, alkylene and aryl being as defined above.
• Alkylenaryl is, in particular in the aryl radical, optionally substituted benzyl or phenethyl.
• Aryloxy or -O-aryl is an oxygen-bonded aryl as defined above, especially -O-phenyl.
• Hetaryl is an aromatic ring containing at least one heteroatom, preferably 1 or 2 heteroatoms, selected from the group O, N or S and preferably 1 to 6, more preferably 1 to 5 carbon atoms.
• the aromatic ring is preferably 5- or 6-membered.
• Hetaryl also includes the aryl fused derivatives thereof, namely an aromatic residue preferably having 6 to 20 carbon atoms, more preferably 6 to 10 carbon atoms, most preferably phenyl fused to this aromatic ring containing at least one hetero atom.
• Hetaryl can also be selected from an aromatic radical preferably having 6 to 20, yet more preferably e to 10 carbon atoms, most preferably phenyl, with a heterocycloalkyl group fused to it.
• heterocycloalkyl group is as defined above.
• Hetaryl is preferably selected from 2-furyl, 3-furyl, 2-pyrrolyl, 3-pyrrolyl, 2-thienyl, 3-thienyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-thiazolyl, 4-thiazolyl, 5 -Thiazolyl, 2-oxazolyl, 4-oxazolyl, 5-oxazolyl, 2-pyrimidyl, 4-pyrimidyl, 5-pyrimidyl, 6-pyrimidyl, 3-pyrazolyl, 4-pyrazolyl, 5-pyrazolyl, 3-isothiazolyl, 4-isothiazolyl , 5-isothiazolyl, 2-imidazolyl, 4-imidazolyl, 5-imidazolyl, 3-pyridazinyl, 4-pyridazinyl, 5-pyridazinyl, 6-pyhdazinyl, 3-isoxazo
• Alkylene hetaryl is a CC 6 -, even more preferred C 1 -C 12 -alkylene bonded, optionally substituted in the hetaryl radical, hetaryl, alkylene and hetaryl being as defined here.
• Alkylene hetaryl is preferably optionally substituted -CH 2 -2- pyridyl, -CH 2 -3-pyridyl, -CH 2 -4-pyridyl, -CH 2 -2-thienyl, -CH 2 -3-thienyl, -CH 2 -2 - thiazolyl, -CH 2 -4-thiazolyl, CH 2 -5-thiazolyl, -CH 2 -CH 2 -2-pyridyl, -CH 2 -CH 2 -3-pyridyl, -CH 2 -CH 2 -4-pyridyl , -CH 2 -CH 2 -2-thienyl, -CH 2 -CH 2 -3-thienyl, -CH 2 -CH 2 - 2-thiazolyl, -CH 2 -CH 2 -4-thiazolyl or -CH 2 -CH 2 -5-thiazolyl.
• a bi- or tricyclic, saturated hydrocarbon radical is a bicycloalkyl or tricycloalkyl radical and has 5 to 18 carbon atoms.
• the ring system preferably contains 5 to 12, more preferably e to 10, carbon atoms.
• the ring system preferably contains 6 to 16, more preferably e to 12, carbon atoms.
• Examples of a bicycloalkyl group include indanyl, camphyl and norbornyl.
• Examples of a tricycloalkyl group include adamantyl.
• Halogen is a halogen atom selected from fluorine, chlorine, bromine or iodine, preferably fluorine, chlorine or bromine, more preferably fluorine or chlorine.
• Halogen-substituted alkyl denotes an alkyl radical, as defined above, which is partially or completely substituted by fluorine, chlorine, bromine and / or iodine, that is to say, for example, CH 2 F, CHF 2 , CH 2 CI, 2-fluoroethyl, 2-chloroethyl, 2,2,2-trifluoroethyl.
• the radicals and groups can preferably be substituted one or more times, more preferably one, two or three times, most preferably one or two times.
• the expression “in each case optionally substituted” is intended to clarify that not only the radical immediately following but all radicals mentioned in the respective group can be substituted.
• substituents include: halogen, CN, CF 3 , CHF 2 , OCF 3 , OCHF 2 , N0 2 , NH 2 , OH, COOH, each branched or unbranched, optionally substituted Ci-C ⁇ -alkyl, C 3 -C 7 - Cycloalkyl, d-Ce-alkylene-Od-Ce-alkyl or -CC 6 thioalkyl, 0- dC 4 -alkyl, N (dC 4 -alkyl) 2 , NH (-C-C 4 -alkyl), aryl, - O-aryl, dC 4 -alkylene-0-aryl, NHCO-C C 4 -alkyl, NH-S0 2 -dC 4 -alkyl, CO-d.
• the guanidine compounds of the formula I or IA or their salts can have at least one asymmetric center and can be present as racemates and racemic mixtures, individual enantiomers, diastereomeric mixtures and individual diastereomers.
• the present invention encompasses all of these stereoisomeric forms of the guanidine compounds of formula I or IA.
• the guanidine compounds of formula I or IA can be broken down into their individual stereoisomers by conventional methods, for example fractional crystallization from a suitable solvent, for example methanol or ethyl acetate or a mixture thereof, or by chiral chromatography using an optically active stationary phase.
• Absolute stereochemistry can be determined by X-ray crystallography of the crystalline products or crystalline intermediates, which, if necessary, are derivatized with a reagent containing an asymmetric center of a known absolute configuration.
• any stereoisomer of a guanidine of formula I or IA can be obtained by stereospecific synthesis using optically pure starting materials or reactants with a known absolute configuration or by asymmetric synthesis methods.
• the guanidine compounds of the formula I or IA described here can also be present as different tautomers of the guanidine group, the type of tautomerism depending on the nature of the radicals R1, R2 and R3, as is evident to the person skilled in the art.
• Other tautomers such as keto-enol tautomers, can also be present. All individual possible tautomers and mixtures thereof are encompassed by the guanidine compounds of the formula I or IA.
• pharmaceutically acceptable salts refers to salts made from pharmaceutically acceptable physiologically acceptable bases or acids, including inorganic or organic bases and inorganic or organic acids.
• Salts derived from inorganic bases include aluminum, ammonium, calcium, copper, iron (II), iron (III), lithium, magnesium, manganese, potassium, sodium, zinc and the like.
• the ammonium, calcium, lithium, magnesium, potassium and sodium salts are particularly preferred.
• Salts derived from pharmaceutically acceptable non-toxic organic bases include salts of primary, secondary and tertiary amines, substituted amines, including naturally occurring substituted amines, cyclic amines and basic ion exchange resins such as arginine, betaine, caffeine, choline, N, N '- dibenzylethylenediamine, diethylamine, 2-diethylaminomethanol, 2-dimethylaminoethanol, ethanolamine, ethylenediamine, N-ethylmorpholine, N-ethylpiperidine, glucamine, glucosamine, histidine, hydrabamine, isopropylamine, lysine, methylglucamine, morpholine, piperamine, piperamine, piperazine, piperazine, piperazine Purines, theobromine, triethylamine, trimethylamine, T ⁇ ' propylamine, tromethamine and the like.
• basic ion exchange resins such
• salts can be prepared from pharmaceutically acceptable physiologically acceptable acids, including inorganic and organic acids.
• acids include, among others, acetic acid, benzenesulfonic acid, benzoic acid, camphor sulfonic acid, citric acid, ethanesulfonic acid, formic acid, fumaric acid, gluconic acid, glutamic acid, hydrobromic acid, hydrochloric acid, lactic acid, malic acid, maleic acid, mandelic acid, methanesulfonic acid, malonic acid, nitric acid, phosphoric acid, bernothenic acid, pantothenic acid, pantothenic acid, pantothenic acid, pantothenic acid, Sulfuric acid, tartaric acid, p-toluenesulfonic acid, trifluoroacetic acid and the like.
• the invention also relates to the use of the guanidine compounds of the formula I or IA for the treatment of:
• Anxiety and / or stress-related disorders such as general anxiety disorders, panic disorders, obsessive-compulsive disorders, post-traumatic disorders, acute stress disorders and / or social phobia
• disorder in the sense of the invention denotes anomalies which are generally regarded as pathological conditions and can be identified in the form of certain signs, symptoms and / or malfunctions.
• the treatment can be directed to individual disorders, i.e. anomalies or pathological conditions, but several anomalies that may be causally linked can also be patterned, i.e. Syndromes can be summarized, which can be treated according to the invention. This condition can be temporary, progressive, or permanent.
• Compounds of the present invention can be used to treat or prevent various diseases that are involved in the formation and / or course of 5-HT5 receptors, ie diseases that are modulated by 5-HT5 receptor activity, such as mental disorders.
• mental disorders are according to the American Psychatric Association DSM-IV, Diagnostic and Statistical Manual of Mental Disorders, 4th ed., 1994: Attention disorders and socially disruptive behavior; Learning disorders, delirium, dementia and amnestic and other cognitive disorders; Disorders related to various substances, such as disorders related to alcohol consumption and alcohol-induced disorders, withdrawal symptoms; Schizophrenia and other psychotic disorders such as schizophrenia disorder, schizoaffective disorder, and delusional disorder; Substance-induced psychoses; paranoid disorders; Neuroleptic-induced disorders; mood disorders, such as depressive disorders (major depression, dysthemic disorder, seasonal disorder, unspecified depressive disorder), bipolar disorders (bipolar I disorder, bipolar II Disorder, cyclothymic disorder, unspecified bipolar disorder, substance (amphetamine or amp
• the invention also relates in particular to the use of guanidine compounds I and IA for the treatment of neuropathological, neuropsychiotic and neurodegenerative disorders.
• Neuropathological disorders are disorders that are accompanied by neurological deficits, i. H. a condition characterized by neurological deficits.
• neurodegenerative and / or neuropsychiotic disorders are preferred according to the invention. These disorders occur in particular in the case of neuropathological disorders which generally cause brain damage, for example cerebral ischemia, stroke, epilepsy and seizures in general, chronic schizophrenia, other psychotic disorders, depression, anxiety, bipolar disorders, dementia, in particular Alzheimer's dementia, demyelinating disorders, especially multiple sclerosis, brain tumors and general inflammatory processes.
• neuropathological disorders which generally cause brain damage, for example cerebral ischemia, stroke, epilepsy and seizures in general, chronic schizophrenia, other psychotic disorders, depression, anxiety, bipolar disorders, dementia, in particular Alzheimer's dementia, demyelinating disorders, especially multiple sclerosis, brain tumors and general inflammatory processes.
• Another neuropathological disorder is migraine, as well as the associated signs, symptoms and malfunctions.
• neuropathological disorders associated with a glial response are treated.
• the use according to the invention particularly relates to the modulation of a glial reaction.
• a beneficial effect of the binding partner is shown in the preventive or acute Treatment of neurological deficits that are observed in patients suffering from psychiatric illnesses, such as epilepsy, psychosis, e.g. psychoses of acute exogenous reaction type or accompanying psychoses of organic or exogenous cause, e.g.
• senile dementia and senile dementia of the Alzheimer type after trauma, especially brain lesions and diffuse brain damage, with metabolic disorders, infections , and endocrinopathies; endogenous psychoses such as schizophrenia as well as schizotype and delusional disorders; mood disorders, such as depression, mania or manic-depressive states; as well as mixed forms of the psychoses described above; senile dementia and senile dementia of the Alzheimer type, as well as in the treatment or prevention of demyelination processes.
• the guanidine compounds according to the invention are particularly effective with regard to the treatment of ischemic damage, e.g. as a result of brain and spinal cord trauma as well as vascular occlusion or heart failure. Stroke should be mentioned here in particular (synonym: apoplexia cerebri, cerebral or apoplectic insult, stroke). Transient-ischemic attacks, reversible ischemic neurological deficits, prolonged reversible ischemic neurological deficits, partially reversible ischemic neurological symptoms and also persistent complete brain infarctions can be treated according to the invention. The treatment of acute forms is particularly advantageous according to the invention.
• neuropathological disorders which are preferably treated according to the invention are based on one or more of the changes in nerve tissue listed below: degeneration or death of neurons, in particular of the ganglion cells, for example. Tigrolysis, blunt membrane blurring, cell shrinkage, cytoplasmic vacuolation and incrustation, parenchyma necrosis of the brain, cerebral edema, changes in neurons caused by lack of oxygen, atrophy, morphological changes such as demyelination, in particular a medullary decay, perivascular infiltration / gloliosis, gliotic; Degeneration of the substantia nigra.
• the indication to be treated according to the invention is often characterized by a progressive development, ie the conditions described above change over time, the degree of severity generally increases and, if appropriate, conditions can merge or further conditions can join existing conditions.
• a progressive development ie the conditions described above change over time, the degree of severity generally increases and, if appropriate, conditions can merge or further conditions can join existing conditions.
• shock lung Cranial nerve failures, eg retrobulbar neuritis, eye muscle paralysis, chanting speech, spastic paralysis, cerebellar symptoms, sensitivity, bladder and rectum disorders, euphoria, dementia
• Hypo- and akinesis lack of movement, small-step gait, flexing of the trunk and limbs, pro-, retro- and lateropulsion, tremor, lack of facial expressions, monotonous language, depression, apathy, unstable or rigid affectivity, difficult spontaneity and determination, slow thinking, impoverished association ability
• Muscle atrophy Muscle atrophy.
• Treatment in the sense of the invention includes not only the treatment of acute or chronic signs, symptoms and / or malfunctions but also preventive treatment (prophylaxis), in particular as relapse or phase prophylaxis.
• Treatment can be symptomatic, for example as symptom suppression. It can be short-term, medium-term, or it can also be long-term treatment, for example in the context of maintenance therapy.
• binding partner for 5-HT5 receptors describes substances which bind to 5-HT5 receptors and can therefore also be referred to as 5-HT5 receptor ligands.
• Binding is understood to mean any molecular interaction between the binding partner and the receptor, in particular under physiological conditions. These are usually classic interactions, which include electrostatic attraction, hydrogen bonding, hydrophobic bonds, van der Waals forces or metal complex-like coordinative bonds. In addition to the reversible molecular interactions mentioned above, irreversible interactions between binding partner and receptor can also be considered, e.g. covalent bonds.
• Guanidine compounds according to the invention can competitively inhibit the binding of comparative binding partners such as 5-HT (5-hydroxytryptamine) or 5-CT (5-carboxamidotryptamine) to 5-HT5 receptors.
• comparative binding partners such as 5-HT (5-hydroxytryptamine) or 5-CT (5-carboxamidotryptamine)
• 5-HT 5-HT
• 5-CT 5-carboxamidotryptamine
• competitive Inhibition is understood to mean that the guanidine compounds according to the invention compete with a comparative binding partner, in the present case ZB-HT or 5-CT, for binding to the receptor.
• guanidine compounds according to the invention non-competitively inhibit the binding of comparative binding partners such as 5-HT (5-hydroxytryptamine) or 5-CT (5-carboxamidotryptamine) to 5-HT5 receptors.
• comparative binding partners such as 5-HT (5-hydroxytryptamine) or 5-CT (5-carboxamidotryptamine)
• Non-competitive inhibition means that guanidine compounds according to the invention bind a comparative binding partner via their binding to the receptor, in the present case e.g. 5-HT or 5-CT, modulate, especially reduce its binding affinity.
• guanidine compounds according to the invention therefore have a high binding affinity for 5-HT5 receptors.
• a binding affinity allows, on the one hand, an effective displacement of naturally occurring binding partners for 5-HT5 receptors, such as, for example, serotonin (5-hydroxytryptamine, 5-HT) itself, the concentration of guanidine compound according to the invention required to bind a certain amount of this binding partner to 5-HT5 Receptors decrease with increasing binding affinity.
• guanidine compounds are therefore preferred whose binding affinity is so great that they can be administered as an active ingredient in an effective medical treatment in acceptable amounts.
• guanidine compounds according to the invention are used in vitro to displaces another comparative binding partner by 50% from the receptor binding site (IC50 values).
• the competitive inhibition of the binding of 5-CT to 5-HT5 receptors can also be evaluated to the extent that preferred guanidine compounds according to the invention have half-maximal inhibition constants 1C50 of less than 10-5 M, preferably less than 10-6 M and in particular less than Have 10-7 sts.
• the binding affinity of guanidine compounds according to the invention can also can be expressed via the inhibition constant Ki, which is generally also determined in competition experiments in vitro.
• Ki values are of less than 10-6 M, advantageously less than 10-7 M and particularly preferably less than 10-8 M.
• binding partners for 5-HT5 receptors include, in particular, those whose binding affinity for 5-HT5 receptors is so high compared to the affinity for 5-HT receptors that they are advantageous for the use according to the invention are suitable. This does not necessarily require a comparatively more selective binding to 5-HT5 receptors, although selective binding partners for 5-HT5 receptors are a special embodiment of the present invention. ⁇ ; For example, one can use binding partners that are highly affine to both 5-HT5 and other 5-HT receptors. High affinity means in this
• Relationship Ki values generally in the range from 1-10-10 M to 1-10-6 M. According to a particular embodiment, guanidine compounds have a high affinity
• Range is substantially the same or only slightly less. Factors of 10 or less can be beneficial.
• Guanidine compounds according to the invention have binding affinities for 5-HT5 receptors which are greater than for one or more 5-HT receptors other than 5-HT5, that is to say in particular the 5-HT receptor classes 5-HT1, 5-HT2, 5-HT3 mentioned above , 5-HT4, 5-HT6 and 5-HT7 assignable receptors. If the binding affinity for 5-HT5 receptors of a binding partner is greater than that of a 5-HT receptor different from 5-HT5, one speaks of a selective binding of these binding partners with regard to the 5-HT receptor different from 5-HT5 5- HT5 receptors. Special binding partners are those whose binding affinity for 5-HT5 receptors is greater than for at least one 5-HT receptor. Guanidine compounds whose binding affinity for 5-HT5 receptors is greater than for all 5-HT receptors other than 5-HT5 represent a further special class of guanidine compounds according to the invention.
• Selectivity means the property of a binding partner, preferably to bind to 5-HT5 receptors. It is decisive for the selectivity described above that the binding affinities for 5-HT5 receptors on the one hand and for one or more 5-HT5 receptors different from 5-HT5 on the other hand differ sufficiently. Affinity differences are preferred, according to which binding affinity ratios of at least 2, more advantageously of at least 5, particularly advantageously of at least 10, preferably of at least 20, particularly preferably of at least 50 and in particular of at least 100 are present.
• guanidine compounds according to the invention bind selectively to 5-HT5 receptors with the advantageous binding affinities described above with respect to one or more 5-HT5 receptors other than 5-HT5.
• guanidine compounds according to the invention bind selectively to 5-HT5 receptors with the advantageous binding affinities described above with respect to all 5-HT receptors other than 5-HT5.
• Guanidine compounds which bind to the 5-HT5 receptors with the affinities and selectivities described above and which are expressed by glial cells and in particular by astrocytes are particularly advantageous.
• the human receptor variant is a preferred target for the guanidine compounds according to the invention.
• guanidine compounds according to the invention The binding of guanidine compounds according to the invention to 5-HT5 receptors is coupled to an effector function. Binding partners can act agonistically or antagonistically as well as partially agonistically and / or partially antagonistically. According to the invention, agonists are compounds which completely or partially mimic the activity of 5-HT at 5-HT5 receptors. Guanidine compounds according to the invention which can block the agonistic activity of 5-HT at 5-HT5 receptors are referred to as antagonists.
• guanidine compounds are used whose binding at least to 5-HT5 receptors of h5-HT5-transfected CHO or HEK 293 or SHSY-5Y cells changes the agonist-induced stimulation of GTP binding to membrane-bound G proteins, a change in intracellular calcium levels, a change in the agonist-induced induction of phospholipase C activity and / or a change in cAMP production.
• the change in intracellular calcium levels the use of guanidine compounds which bring about an increase in intracellular calcium levels is a particular embodiment of the invention.
• This embodiment also includes guanidine compounds which are active in known animal models for neurodegenerative and neuropsychiatric processes ,
• guanidine compounds which are also selective for 5-HT5 receptors with regard to their effector function in the sense described above.
• the guanidine compounds according to the invention can be used as active ingredients for therapeutic purposes.
• the guanidine compounds according to the invention are preferably brought into a suitable dosage form before administration.
• the present invention therefore also provides compositions, in particular pharmaceutical compositions, which comprise at least one guanidine compound according to the invention and a pharmaceutically acceptable carrier or diluent.
• the carriers or auxiliaries known to be usable in the field of pharmacy and related fields are pharmaceutically acceptable, in particular those in relevant pharmacopoeias (e.g. DAB (German Pharmacopoeia), Ph. Eur. (Pharmacopoeia Europaea), BP (Baccalaureus Pharmaciae), NF (National Formulary) , USP (United States Pharmacopoeia) listed, and also other carriers, the properties of which do not conflict with a physiological application.
• relevant pharmacopoeias e.g. DAB (German Pharmacopoeia), Ph. Eur. (Pharmacopoeia Europaea), BP (Baccalaureus Pharmaciae), NF (National Formulary) , USP (United States Pharmacopoeia) listed, and also other carriers, the properties of which do not conflict with a physiological application.
• Suitable carriers and auxiliaries can be: wetting agents; emulsifying and suspending agents; preservatives; antioxidants; Antiirritatives; chelating agents; coating aids; Emulsion stabilizers; film formers; gelling agents; Odor masking agents, flavor correctors; resins; Hydrocolloids; Solvents; Solubilizing agents; Neutralizing agents; permeation; pigments; quaternary ammonium compounds; Refatting and overfatting agents; Ointment, cream or oil base materials; Silicone derivatives; spreading aids; stabilizers; Sterilanzien; suppository bases; Tablet excipients such as binders, fillers, lubricants, explosives or coatings; Propellant; Desiccant; Opacifiers; Thickener; waxes; plasticizers; White oils.
• a design in this regard is based on professional knowledge, as is shown, for example, in Fiedler, HP, Lexicon of auxiliaries for pharmacy, cosmetics and related areas, 4th edition, Aulendorf: ECV-Editio-Kantor-Verlag, 1996.
• suitable carriers and diluents include lactose, dextrose, sucrose, sorbitol, mannitol, starches, gum acacia, calcium phosphate, alginates, tragacanth, gelatin, calcium sulfate, microcrystalline cellulose, polyvinylpyrrolidone, cellulose, water syrup, methyl cellulose, methyl and propyl hydroxy stearate, magnesium stearate and mineral oil.
• guanidine compounds according to the invention can be formulated to ensure immediate or delayed release of the active ingredient to the patient.
• suitable pharmaceutical compositions are solid pharmaceutical forms, such as powders, powders, granules, tablets, in particular film-coated tablets, pastilles, sachets, cachets, dragees, capsules such as hard and soft gelatin capsules, suppositories or vaginal pharmaceutical forms, semi-solid pharmaceutical forms such as ointments, creams, hydrogels, Pastes or plasters, and liquid pharmaceutical forms, such as solutions, emulsions, in particular oil-in-water emulsions, suspensions, for example lotions, injection and infusion preparations, eye and ear drops.
• Implanted delivery devices can also be used to administer the guanidine compounds of the invention. Liposomes or microspheres can also be used.
• the compositions according to the invention can, for example, be administered in the usual way.
• the active compounds are usually mixed or diluted with a suitable excipient, in this case also referred to as excipient.
• excipients can be solid, semi-solid or liquid materials that serve as vehicles, carriers or media for the active ingredient. If necessary, further auxiliaries are added in a manner known per se. Shaping steps, possibly in connection with mixing operations, can be carried out, e.g. granulation, compression and the like.
• the use according to the invention of the active substances according to the invention includes a method in the context of the treatment.
• An effective amount of at least one guanidine compound of the formula I or IA, generally formulated in accordance with pharmaceutical practice, is administered to the individual to be treated, preferably a mammal, in particular a human being, and also a useful or domestic animal.
• the invention also relates to the production of agents for treating an individual, preferably a mammal, in particular a human, useful or domestic animal.
• the guanidine compound of formula I or IA or the corresponding pharmaceutical composition can be administered orally, rectally, topically, parenterally, including subcutaneously, intravenously and intramuscularly, ocularly, pulmonarily or nasally. Oral administration is preferred.
• An effective dosage of the active ingredient can depend on the type of guanidine compound, the mode of administration, the disease to be treated and the severity of the disease to be treated. Such an effective dosage of the active ingredient can be determined by the person skilled in the art without difficulty.
• the dosage depends on the age, condition and weight of the patient as well as the type of application.
• the daily dose of active ingredient is between about 0.5 and 100 mg / kg body weight with oral administration and between approximately 0.1 and 10 mg / kg body weight with parenteral administration.
• the guanine compounds according to the invention can be prepared analogously to methods known from the literature, as are known to the person skilled in the art.
• the synthesis of guanidines is generally described in J. Org. Chem. 1997, 9, 1053; Tetrahedron 1999, 55 (10), 713; Tetrahedron Letters 1999, 40, 53; J. Org. Chem. 2000, 65, 8080 and the references cited therein.
• the synthesis of the guanidine compounds according to the invention can be carried out according to schemes 1 or 2 under customary reaction conditions, as described, for example, in Journal of Medicinal Chemistry 1997, 40, pp. 2462-2465, Journal of Medicinal Chemistry 1999, 42, pp.
• Hetarylamines II are commercially available or according to methods known from the literature (e.g. Houben-Weyl, Methods of Organic Chemistry, Volumes E8b and E8c, Stuttgart, 1994; MB Smith, J. March, March's Advanced Organic Chemistry, New York, 2001) produced.
• the amines IV used according to the synthetic route shown in Scheme 1 are also commercially available or can be prepared, for example, according to known regulations (e.g. Houben-Weyl, Methods of Organic Chemistry, 4th Edition, Volume XI / 1, Stuttgart, 1957).
• the guanidine compounds of the general formula I according to the invention can be built up in one of the last steps according to Scheme 2.
• the literature e.g. Houben-Weyl, Methods of Organic Chemistry, 4th Edition, Volume Vll / 2c /, Stuttgart, 1977
• Haloketone V e.g. Houben-Weyl, Methods of Organic Chemistry, 4th Edition, Volume Vll / 2c /, Stuttgart, 1977
• the intermediate IVA is used to prepare the guanidines according to the invention by methods familiar to the person skilled in the art, such as are described, for example, in the references cited above.
• guanidine compounds according to the invention can be obtained in a conventional manner and, if necessary, purified, for example by recrystallization from conventional organic solvents, preferably a short-chain alcohol such as ethanol, or using chromatographic techniques.
• the guanidine compounds of the formula according to the invention are obtained in free form or already as acid addition salts. Both the compounds in free form and salts of these compounds resulting from the process can be converted in a manner known per se into desired acid addition salts or into the free form.
• the following examples illustrate the invention without restricting it. It should be noted that the designation and representation of salts with protonated nitrogen in terms of formulas only represent one of several options for charge distribution that are all included. This also applies to tautomeric forms.
• N-1, 3-thiazol-2-yl-1 H-imidazole-1-carbothioamide 35 g (349.5 mmol) 2-aminothiazole and 62.3g (349.5 mmol) thiocarbonyldiimidazole in 1300 ml acetonitrile were stirred for a total of 4 days at room temperature. Filtration of the precipitate formed and drying gave 65.5 g of slightly yellowish solid.
• N-1, 3-thiazol-2-yl-thiourea A mixture of 65 g (309.1 mmol) of N-1, 3-thiazol-2-yl-1 H-imidazole-1-carbothioamide and 260 g of ammonium acetate in 400 ml of ethanol was heated to 80 ° C for 1.5 hours, after the reaction the solvent. distilled off and the residue obtained was mixed with water. After extraction with CH 2 CI 2 and drying of the organic phase with Na 2 S0, 59.6 g of the target product were obtained.
• Example 2 ⁇ / - (2,6-dimethoxybenzyl) - ⁇ / '- (4-phenyl-1, 3-thiazol-2-yl) guanidine 2.1 ⁇ / - ⁇ [(4-phenyl-1, 3-thiazol-2-yi) amino] carbonothioyl ⁇ benzamide 3.10 g of 2-amino-4-phenylthiazole (176 mmol) and 3.00 g of benzoyl isothiocyanate were mixed in 50 ml of acetone for 2 hours heated under reflux, forming a yellow solid. The reaction mixture was then stirred at 5 ° C.
• ⁇ / '- (2,6-Dimethoxybenzyl) - ⁇ / - (3-phenyl-1, 2,4-thiadiazol-5-yl) guanidine was prepared analogously to Example 1 with the following variations: The alkylation of ⁇ / - (3 - Phenyl-1, 2,4-thiadiazol-5-yl) thiourea with methyl iodide was carried out in the presence of 1.5 equivalents of triethylamine and the reaction of methyl N '- (3- phenyl-1, 2,4-thiadiazol-5-yl) imidothiocarbamate with 2,6-dimethoxybenzylamine was carried out at 140 ° C in the microwave (120 watts).
• Example 107 'N- (2,6-Dimethoxybenzyl) -N' - ⁇ 4- [4- (trifluoromethyl) pheny)] - 1, 3-thiazol-2-yl ⁇ guanidine
• the preparation was carried out analogously to Example 3 by reaction of 140 mg (0.52 mmol) ⁇ / - [[(2,6-dimethoxybenzyl) amino] (imino) methyl] thiourea with 140 mg (0.52 mmol) 4- (trifluoromethyl) phenacyl bromide.
• the starting materials were suspended in 3 ml of dioxane, 0.3 ml of acetic acid were added and the mixture was heated in the microwave for 40 minutes (300 W radiation).
• N- [4- (1-acetylpyrrolidin-2-yl) -1, 3-thiazol-2-yl] -N '- (2,6-dimethoxybenzyl) guanidine A mixture of 100mg (0.25mmol) N- (2, 6-Dimethoxybenzyl) -N '- (4-pyrrolidin-2-yl-1,3-thiazol-2-yl) guanidine hydrochloride, example 147, 0.021 ml acetyl chloride and 0.04 ml pyridine in 10 ml THF was 1 hour at 5 ° C, then stirred for 4 hours at room temperature.
• N- (2,6-Dimethoxybenzyl) -N '- [4- (1-methylpyrrolidin-2-yl) -1, 3-thiazol-2-yl] guanidine 72mg (0.2mmol) N- (2,6-dimethoxybenzyl ) -N '- (4-pyrrolidin-2-yl-1, 3-thiazol-2-yl) guanidine hydrochloride, example 147, and 20 mg of formalin (37% aqueous solution) were at 10 ° C. mixed with 51 mg sodium triacetoxyborohydride, stirred for 30 minutes at 10 ° C and 2 hours at room temperature.
• the compound is in the form of a tautomeric mixture of 1- [2- ( ⁇ imino [(2-methoxybenzyl) amino] methyl ⁇ amino) -1, 3-thiazol-4 (5H) -ylidenes] piperidine and ⁇ / - (2- Methoxybenzyl) - ⁇ / '- (4-piperidin-1-yl-1, 3-thiazol-2-yl) guanidine.
• Compound 192 was prepared by reacting suitable starting materials of the formulas IV and V analogously to Example 107:
• Compound 175 was prepared by reacting suitable starting materials of formulas II and IV as follows:
• Example 175 ⁇ / - (2-methoxybenzyl) - / V '- (5-phenyl-1, 3,4-thiadiazol-2-yl) guanidine acetate 175.1.
• the iodide salt can alternatively be released by extraction with 2N sodium hydroxide solution. After extraction with water (3 x 50 ml), the organic phase was dried over MgS0 4 and after removal of the solvent i. Vak. 0.37 g of crude product were isolated, which was used for the subsequent reaction without further purification.
• the compounds 176-178 and 183 were prepared by reacting suitable starting materials of the formulas II and IV analogously to Example 175:
• the compounds 179 and 180 were prepared by reacting suitable starting materials of the formulas II and IV analogously to Example 175, the corresponding commercially available thiourea derivatives being treated with 1N sodium hydroxide solution as in 175.3 after the reaction with methyl iodide in order to release the iodide salt , The addition of toluene as in 175.4 was not necessary here:
• the reaction can also be carried out in the microwave (at 100-200 watts) for 30 minutes at 90-100 ° C.
• the solvent was i. Vak. away.
• the residue was taken up in water and the product was extracted into the organic phase with dichloromethane.
• the organic phase was washed with 1N NaOH (2 x 50 ml) to completely remove the iodide from the product.
• the organic solvent i. Vak. away.
• a voluminous precipitate formed after the residue was taken up in 4 ml of acetonitrile / water (1: 1) and 0.5 ml of glacial acetic acid. The solid was filtered off and 30 mg of the desired product were obtained.
• ESI-MS [M + H + ] 326.25
• the compounds 184 and 189 were prepared by reacting suitable starting materials of the formulas II and IV analogously to Example 182:
• the compounds 186 and 188 were prepared by reacting suitable starting materials of the formulas II and IV analogously to Example 187:
• Example 197 ⁇ / - (2-methoxybenzyl) - ⁇ / '- (4-phenyl-1, 3-oxazol-2-yl) guanidine
• the cyclization of 0.60g (2.94mmol) ⁇ / -Cyano-A /' - (2-methoxybenzyl) guanidine with 0.44g (2.94mmol) 2-hydroxyacetophenone was carried out in 20 ml acetonitrile and water (1: 1).
• the pH of the mixture was adjusted to pH 1.5 with 1N, hydrochloric acid, and the mixture was then heated in the microwave at 45 ° C. (100 watts) for 4.5 hours. After working up and cleaning analogously to 190.2, 0.10 g of pure product was obtained.
• ESI-MS [M + H + ] 323.15
• Example 198 A / - [4- (4-fluorophenyl) -1, 3-oxazol-2-yl] -N '- (2-methoxybenzyl) guanidine
• the preparation of A / - [4- (4-fluorophenyl) - 1, 3-oxazol-2-yl] -N '- (2-methoxybenzyl) guanidine was carried out analogously to Example 197.
• ESI-MS [M + H + ] 341.05
• Example 199 ⁇ / - (2,6-dimethoxybenzyl) - ⁇ / '- (4-phenyl-1, 3-oxazol-2-yl) guanidine
• ⁇ / - (2,6-dimethoxybenzyl) - ⁇ / '- (4-phenyl-1, 3-oxazol-2-yl) guanidine The preparation of the ⁇ / - (2,6-dimethoxybenzyl) - ⁇ / '- (4-phenyl-1, 3-oxazol-2-yl) guanidine was carried out analogously to Example 197.
• ESI-MS [M + H + ] 353.35
• Example 201 was produced analogously to Example 200:
• Example 208 N- (2-Methoxybenzyl) -N '- [5- (4-methoxyphenyl) -1 H-pyrazol-3-yl] guanidine starting from 120 mg of 1- [5- (4-methoxy-phenyl) -1 H-pyrazole -3-yl] -2-methyl-isohame hydroiodide; 56mg target product.
• ESI-MS [M + H +] 352
• Membranes from HEK293 cells that permanently express the h5-HT 5A receptor gene are placed in 100 mM Tris-HCl buffer (pH 7.7) containing 1 mM EDTA in the presence of 2.5 nM [ 3 H] 5-CT incubated (600 ⁇ l total volume).
• Total binding is defined by the binding observed when the membranes are incubated in the presence of the radioligand alone.
• Compound-induced inhibition is determined by incubating cell membranes in the presence of the radioligand and various concentrations of the compound of interest.
• the non-specific binding is defined by the [ 3 H] 5-CT binding, which is obtained by incubating the membranes as for the total binding, but in the presence of 10 ⁇ M methiothepine.
• the membrane suspension is filtered through GF / B filters, enveloped with 0.03% PEI, using a Skatron R harvesting system.
• the radioactivity retained in the filter is quantified by liquid scintillation counting.
• GTP-Eu the activation of a G protein-coupled receptor can be activated by an agonist as an increase in the binding of GTP-Eu to the receptor-G protein complex. After removal of unbound GTP-Eu, bound GTP-Eu can be quantified by measuring the time-resolved fluorescence emission in suitable detection devices.
• Cell line h5HT5A_18.2_SH-sy-5y, a human neuroblastoma cell line that stably expresses the human 5-HT5A receptor.
• Membrane preparation Cell membranes are produced according to a standard protocol in the presence of protease inhibitors and are partially cleaned by two successive centrifugation steps at 40,000xg. Aliquots are kept at -80 ° C.
• the assay is performed in 96-well filter plates (AcroWell-96, Pall Corp.).
• the receptor membranes diluted in assay buffer (2.5 ⁇ M GDP, 100 mM NaCl, 3 mM MgCl 2 , 50 mM HEPES pH 7.4) are added to the filter plate (5 ⁇ g receptor membrane / well).
• Test compounds are dissolved in 100% DMSO and serial dilutions are added to the receptor membranes (final DMSO concentration 0.5%).
• the reaction is started by adding serotonin (final concentration 1 ⁇ M, total assay volume 100 ⁇ l).

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